LEGO 51515 Mindstorms Robot Inventor

Forecast Model

This represents the expected annual growth (CAGR) based on a forecast model only.

51515 Robot Inventor is a 949 piece Mindstorms set released in 2020. While the MSRP is $359.99, the current average price on the secondary markets is around $340. The set is estimated to retire sometime within early to mid 2025. Once retired, the expected annual growth will be close to 2% after the second year, which will value the set bewteen $371 and $377 shortly after it is retired.

For Sale (New/Sealed)

	(US) MINDSTORMS Robot Inventor Building Set 51515 Factory Sealed in SHIPPING BOX	$319.99 -11.1%
	(US) LEGO Mindstorms (51515) Robot Inventor Building Set - NEW	$320.00 -11.1%
	(US) MINDSTORMS Robot Inventor Building Set 51515, BRAND NEW Sealed!	$329.99 -8.3%
	(US) Robot Inventor MINDSTORMS (51515)	$339.99 -5.6%
	(US) MINDSTORMS Robot Inventor Building Set 51515, BRAND NEW and MINT	$349.99 -2.8%
	MINDSTORMS Robot Inventor Building Set 51515; STEM Model Robot Toy for Creative Kids with ...	$359.95 0.0%
	(US) MINDSTORMS Robot Inventor Building Set 51515, BRAND NEW and MINT!	$359.95 0.0%
	Offical set 51515 Mindstorms Robot Inventor at LEGO.com	$359.99
	(US) Robot Inventor MINDSTORMS (51515)	$359.99
	(US) MINDSTORMS Robot Inventor 51515	$359.99
	(NL) BrickLink store Brick Exclusive	$365.73 +1.6%
Show 18 more listings
	(HU) BrickLink store brick350	$369.65 +2.7%
	(BE) BrickLink store nick store	$370.08 +2.8%
	(BE) BrickLink store BRICKSTAR BELGIUM	$382.86 +6.4%
	(BE) BrickLink store BRICKSTAR BELGIUM	$396.88 +10.2%
	(US) 51515 Robot Inventor 949 Pcs 10+ New	$399.99 +11.1%
	(DE) !!!PRE-ORDER!!! SHIPPING END OF OCTOBER 2020!!FOR MORE PIECES PLEASE ASK	$404.97 +12.5%
	(CZ) BrickLink store LIMITstore	$422.90 +17.5%
	(SI) Robot Inventor MINDSTORMS (51515)	$439.99 +22.2%
	(CA) BrickLink store rapidos2	$449.95 +25.0%
	(US) MINDSTORMS Robot Inventor Building Set 51515 Factory Sealed in SHIPPING BOX	$487.09 +35.3%
	(US) MINDSTORMS Robot Inventor Building Set 51515 Factory Sealed in SHIPPING BOX	$487.09 +35.3%
	(US) MINDSTORMS Robot Inventor Building Set 51515 New 2020 Kid Toy Gift	$499.95 +38.9%
	(US) Mindstorms Robot Inventor V39 - 51515	$499.95 +38.9%
	(SI) Mindstorms Robot Inventor 51515 NEW-SEALED!	$499.99 +38.9%
	(LV) MINDSTORMS 51515 Robot Inventor (51515)	$518.00 +43.9%
	(US) MINDSTORMS Robot Inventor Building Set 51515 Factory Sealed in SHIPPING BOX	$522.39 +45.1%
	(US) MINDSTORMS Robot Inventor Building Set 51515 Factory Sealed in SHIPPING BOX	$522.39 +45.1%
	(US) New SealedAuthentic LEGO MINDSTORMS Robot Inventor(51515), with Receipt	$525.99 +46.1%
	(US) MINDSTORMS Robot Inventor Building Set 51515; STEM Model Robot Toy for Kids	$638.07 +77.2%

Related Sets


	40413 Mini Robots Theme Mindstorms Year 2020 Pieces 366 Availability Retired Buy this set at Amazon ebay Bricklink	promotional Value $10.05 I own this set I want this set

Sets in Mindstorms


	9719 Robotics Invention System Theme / Subtheme Mindstorms / 1 Year 1998 Pieces 733 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $199.99 Value $360.48 Growth 80.2% Annual growth 2.6% I own this set I want this set

	9747 Robotics Invention System Theme / Subtheme Mindstorms / 1 Year 1999 Pieces 726 Availability Retired Buy this set at ebay	Retail $199.99 Value $215.33 Growth 7.7% I own this set I want this set

	3804 Robotics Invention System V2.0 Theme / Subtheme Mindstorms / 2 Year 2001 Pieces 717 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $199.99 Value $399.18 Growth 99.6% Annual growth 3.5% I own this set I want this set

	9748 Droid Developer Kit Theme / Subtheme Mindstorms / Star Wars Year 1999 Pieces 657 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $99.99 Value $249.83 Growth 149.9% Annual growth 2.8% I own this set I want this set

	8547 Mindstorms NXT 2.0 Theme / Subtheme Mindstorms / NXT 2 Year 2009 Pieces 619 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $279.99 Value $354.84 Growth 26.7% Annual growth 6.9% I own this set I want this set

	31313 Mindstorms EV3 Theme / Subtheme Mindstorms / EV3 Year 2013 Pieces 601 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $349.99 Value $399.93 Growth 14.3% Annual growth 3.1% I own this set I want this set

	9754 Dark Side Developer Kit Theme / Subtheme Mindstorms / Star Wars Year 2000 Pieces 578 Availability Retired Buy this set at Amazon ebay Bricklink Fishpond	Retail $99.99 Value $240.89 Growth 140.9% Annual growth 6.1% I own this set I want this set

	8527 Mindstorms NXT Theme / Subtheme Mindstorms / NXT Year 2006 Pieces 577 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $249.99 Value $495.91 Growth 98.4% Annual growth 6.3% I own this set I want this set

	9735 Robotics Discovery Set Theme / Subtheme Mindstorms / 1 Year 1999 Pieces 390 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $149.99 Value $199.95 Growth 33.3% Annual growth 3.7% I own this set I want this set

	3800 Ultimate Builders Set Theme / Subtheme Mindstorms / 1 Year 2001 Pieces 321 Availability Retired Buy this set at Amazon Bricklink	Retail $59.99 Value $514.10 Growth 757.0% Annual growth 11.3% I own this set I want this set

	9736 Exploration Mars Theme / Subtheme Mindstorms / 1 Year 2000 Pieces 155 Availability Retired Buy this set at Amazon Bricklink	Retail $49.99 Value $179.99 Growth 260.1% Annual growth 5.4% I own this set I want this set

	9732 Extreme Creatures Theme / Subtheme Mindstorms / 1 Year 1998 Pieces 148 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $49.99 Value $49.92 I own this set I want this set

	9731 Vision Command Theme / Subtheme Mindstorms / 1 Year 2000 Pieces 138 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $99.99 Value $144.34 Growth 44.4% Annual growth 1.8% I own this set I want this set

	9730 Robo Sports Theme / Subtheme Mindstorms / 1 Year 1998 Pieces 91 Availability Retired Buy this set at ebay Bricklink	Retail $49.99 Value $50.00 Growth 0.0% Annual growth 1.8% I own this set I want this set

	3803 Robotics Invention System Upgrade Kit Theme / Subtheme Mindstorms / 1 Year 1999 Pieces 70 Availability Retired Buy this set at Bricklink	Retail $24.99 Value $28.01 Growth 12.1% I own this set I want this set

	3801 Ultimate Accessory Set Theme / Subtheme Mindstorms / 1 Year 2000 Pieces 45 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $49.99 Value $119.59 Growth 139.2% Annual growth 2.9% I own this set I want this set

	Keyfob Transponder Theme / Subtheme Mindstorms / NXT Year 2008 Pieces 10 Availability Retired Buy this set at Bricklink	Retail $29.99 Value $40.81 Growth 36.1% Annual growth 2.8% I own this set I want this set

	8529 Connector Cables for Mindstorms NXT Theme / Subtheme Mindstorms / NXT Year 2006 Pieces 7 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $9.99 Value $15.98 Growth 60.0% Annual growth 8.2% I own this set I want this set

	8528 Converter Cables for Mindstorms NXT Theme / Subtheme Mindstorms / NXT Year 2006 Pieces 3 Availability Retired Buy this set at Amazon Bricklink	Retail $9.99 Value $71.29 Growth 613.6% Annual growth 19.5% I own this set I want this set

	9911 Touch Sensor and Leads Theme / Subtheme Mindstorms / 1 Year 2004 Pieces 3 Availability Retired Buy this set at ebay Bricklink	Retail $11.99 Value $23.05 Growth 92.2% Annual growth 3.8% I own this set I want this set

	RF ID Sensor Theme / Subtheme Mindstorms / NXT Year 2008 Pieces 3 Availability Retired Buy this set at Bricklink	Retail $29.99 Value $74.18 Growth 147.3% Annual growth 8.5% I own this set I want this set

	9713 Infrared Transmission Tower Theme / Subtheme Mindstorms / 1 Year 1998 Pieces 2 Availability Retired Buy this set at Bricklink	Retail $24.99 Value $25.00 Growth 0.0% I own this set I want this set

	9757 Touch Sensor Theme / Subtheme Mindstorms / 1 Year 1999 Pieces 2 Availability Retired Buy this set at ebay	Retail $10.99 Value $15.10 Growth 37.4% Annual growth 1.5% I own this set I want this set

	10285 Compass Sensor Theme / Subtheme Mindstorms / NXT Year 2011 Pieces 1 Availability Retired Buy this set at Amazon	Retail $54.99 Value $57.70 Growth 4.9% Annual growth 3.3% I own this set I want this set

	10286 Color Sensor Theme / Subtheme Mindstorms / NXT Year 2011 Pieces 1 Availability Retired Buy this set at Amazon	Retail $54.99 Value $49.99 I own this set I want this set

	10287 Intelligent NXT Black Brick Theme / Subtheme Mindstorms / NXT Year 2009 Pieces 1 Availability Retired Buy this set at Amazon Bricklink	Retail $169.99 I own this set I want this set

	2852724 Accelerometer Sensor Theme / Subtheme Mindstorms / NXT Year 2011 Pieces 1 Availability Retired Buy this set at Amazon	Retail $54.99 Value $49.00 I own this set I want this set

	2852725 Infrared Seeker Theme / Subtheme Mindstorms / NXT Year 2011 Pieces 1 Availability Retired Buy this set at Amazon Bricklink	Retail $49.99 Value $59.36 Growth 18.7% Annual growth 4.0% I own this set I want this set

	2852726 Gyroscopic Sensor Theme / Subtheme Mindstorms / NXT Year 2011 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $54.99 Value $67.16 Growth 22.1% Annual growth 2.8% I own this set I want this set

	2853216 Infrared Link Sensor Theme / Subtheme Mindstorms / NXT Year 2011 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $54.99 Value $72.18 Growth 31.3% Annual growth 5.4% I own this set I want this set

	2855040 Mindstorms NXT IR Receiver Theme / Subtheme Mindstorms / NXT Year 2010 Pieces 1 Availability Retired Buy this set at Amazon Bricklink	Retail $49.99 Value $69.91 Growth 39.8% Annual growth 5.4% I own this set I want this set

	3805 Robotics Invention System Upgrade Kit Theme / Subtheme Mindstorms / 1 Year 2001 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $19.99 Value $70.37 Growth 252.0% Annual growth 6.5% I own this set I want this set

	4524081 Mindstorms NXT CD Theme / Subtheme Mindstorms / NXT Year 2007 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $19.99 Value $25.02 Growth 25.2% Annual growth 1.9% I own this set I want this set

	45500 EV3 Intelligent Brick Theme / Subtheme Mindstorms / EV3 Year 2013 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $189.99 Value $197.28 Growth 3.8% Annual growth 3.1% I own this set I want this set

	45502 EV3 Large Servo Motor Theme / Subtheme Mindstorms / EV3 Year 2013 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $24.99 Value $39.77 Growth 59.1% Annual growth 26.3% I own this set I want this set

	45503 EV3 Medium Servo Motor Theme / Subtheme Mindstorms / EV3 Year 2013 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink Fishpond	Retail $19.99 Value $36.31 Growth 81.6% Annual growth 5.6% I own this set I want this set

	45504 EV3 Ultrasonic Sensor Theme / Subtheme Mindstorms / EV3 Year 2013 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $29.99 Value $42.53 Growth 41.8% Annual growth 5.8% I own this set I want this set

	45505 EV3 Gyro Sensor Theme / Subtheme Mindstorms / EV3 Year 2013 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $29.99 Value $48.47 Growth 61.6% Annual growth 4.7% I own this set I want this set

	45506 EV3 Color Sensor Theme / Subtheme Mindstorms / EV3 Year 2013 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $39.99 Value $47.99 Growth 20.0% Annual growth 3.0% I own this set I want this set

	45507 EV3 Touch Sensor Theme / Subtheme Mindstorms / EV3 Year 2013 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $19.99 Value $22.81 Growth 14.1% Annual growth 2.2% I own this set I want this set

	45508 EV3 Infrared Beacon Theme / Subtheme Mindstorms / EV3 Year 2013 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $29.99 Value $43.03 Growth 43.5% Annual growth 5.5% I own this set I want this set

	45509 EV3 Infrared Sensor Theme / Subtheme Mindstorms / EV3 Year 2013 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink Fishpond	Retail $29.99 Value $41.07 Growth 36.9% Annual growth 3.6% I own this set I want this set

	45517 Transformer 10V DC Theme Mindstorms Year 2015 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $29.99 Value $35.52 Growth 18.4% Annual growth 4.1% I own this set I want this set

	9709 RCX Programmable LEGO Brick Theme / Subtheme Mindstorms / 1 Year 1999 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $109.99 Value $117.88 Growth 7.2% I own this set I want this set

	9738 RCX Remote Control Unit Theme / Subtheme Mindstorms / 1 Year 1999 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $19.75 Value $71.86 Growth 263.8% Annual growth 6.1% I own this set I want this set

	9749 NXT Temperature Sensor Theme / Subtheme Mindstorms / NXT Year 2009 Pieces 1 Availability Retired Buy this set at Amazon ebay Bricklink	Retail $39.95 Value $46.15 Growth 15.5% Annual growth 5.6% I own this set I want this set

	9755 Temperature Sensor Theme / Subtheme Mindstorms / 1 Year 1999 Pieces 1 Availability Retired Buy this set at ebay	Retail $23.99 Value $25.93 Growth 8.1% I own this set I want this set

	9756 Rotation Sensor Theme / Subtheme Mindstorms / 1 Year 1999 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $14.99 Value $15.51 Growth 3.5% I own this set I want this set

	9758 Light Sensor Theme / Subtheme Mindstorms / 1 Year 1999 Pieces 1 Availability Retired Buy this set at ebay	Retail $19.75 Value $33.67 Growth 70.5% Annual growth 2.5% I own this set I want this set

	9798 Rechargeable Battery Theme / Subtheme Mindstorms / NXT Year 2006 Pieces 1 Availability Retired Buy this set at Bricklink	Retail $54.99 Value $61.03 Growth 11.0% Annual growth 1.0% I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

51515-1

Name

Robot Inventor

Theme

Mindstorms

Year

2020

Released

October 2020

Availability

Limited Retail

Pieces

949 (PPP $0.38)

Set Pricing

Retail price

$359.99

Average price

$339.98 -6%

Still available at retail

Quick Buy

Lego Store

Buy

Price

$359.99

Amazon

Buy

Average price

$359.95

eBay

Buy

Lowest price

$319.99

Highest price

$638.07

Bricklink

Buy

Lowest price

$365.73

Highest price

$449.95

*Listings are for new/sealed sets.

Set Predictions

Retirement

Early 2025 71.6%

Annual growth

+3% (first year)

+2% (second year)

Set Facts

Regional Retail Prices (LEGO.com/Store)

United States

$359.99

United Kingdom

£329.99

Canada

$399.99

Europe

€359.99

Australia

$549.99

Barcodes

UPC

673419304764

Robot Inventor Reviews

BrickFanatics

“51515 Robot Inventor offers five different designs for fans to build, which can them be programmed via the MINDSTORMS Robot Inventor app. Beyond the five models with instructions, there are coding challenges to complete that will require users to apply the skills they have... More learned through the process. Drag-and-drop coding teaches the process, with Python included for advanced coders.”

Full review at www.brickfanatics.com

Eurobricks

“If you are a novice robot builder, I would definitely recommend getting this set. If you want to make more advanced robots with bigger programs and more options, I'd recommend getting the EV3. A lot of (third party) stuff is available for the EV3, which allow for a ton of... More options.”

Full review at www.eurobricks.com

The Brothers Brick

“The set may not be perfect, and may not be everything LEGO Mindstorms fans hoped it would be. But it is fun, and users new to the platform are sure to enjoy it, while old hands can find some silver linings along with some new things to experience.”

Full review at www.brothers-brick.com

Subtheme Analysis

Mindstorms

Sets

Years

1998 - 2020

Lifespan

52 mos (this set 3 mos)

Annual growth

+3.10%

About Mindstorms

LEGO Mindstorms is a hardware and software system desigend for the development of programmable robots made out of TECHNIC bricks. The original LEGO Mindstorms Robotics Invention System was born out of a collaboration between MIT and the LEGO group's eductaional division. Since the release, there have been a number of generations of the Mindstorms platform: the original Robotics Invention System, NXT, NXT 2.0, and EV3 and weth each platform release, the motor and sensor capabilities have greatly expanded. Mindstorms are also sold and used as an educational tool and called Mindstorms for schools or Mindstorms Education.

Enter the amazing physical and digital world of programmable, remote-control robots and intelligent creations. With LEGO® MINDSTORMS® Robot Inventor (51515), young robot fans build 5 unique, motorized robots and vehicles using the free LEGO MINDSTORMS Robot Inventor App. Then they bring them to life, one at a time, using the drag-and-drop coding environment based on Scratch and complete fun activities and challenging missions (visit LEGO.com/devicecheck for a list of compatible devices). And with almost 1,000 pieces, kids will love to come up with their own tech toy creations and share them with other robot fans on LEGO Life.

Level up the play experience
From the intelligent Hub with its 5x5 LED screen, 6-axis gyro and speaker, to powerful motors and accurate sensors, the latest evolution of LEGO MINDSTORMS coding robots for kids is the perfect way to help youngsters express and develop their creativity, while gaining essential 21st century STEM skills.