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3803 LEGO Mindstorms Robotics Invention System Upgrade Kit thumbnail image

3803 LEGO Mindstorms Robotics Invention System Upgrade Kit
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3803 LEGO Mindstorms Robotics Invention System Upgrade Kit
  • Robotics Invention System Upgrade Kit thumbnail

Set Value (New/Sealed)

This represents the current new/sealed value of the set Robotics Invention System Upgrade Kit since January 1999. Medium accuracy
LEGO 3803 Robotics Invention System Upgrade Kit was a 70 piece Mindstorms set released in 1999.
Robotics Invention System Upgrade Kit is a relatively rare set as we have not seen set 3803-1 currently for sale in primary or secondary markets in over 6 months. The current value of this set might be slightly higher then what we have estimated. The last brand new Robotics Invention System Upgrade Kit seen was sold on ebay.com.

Sets in Mindstorms / 1

9747 Robotics Invention System

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 726
Availability Retired
9747 LEGO Mindstorms Robotics Invention System
Retail $199.99
Value $211.66
Growth  5.8%

9735 Robotics Discovery Set

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 390
Availability Retired
9735 LEGO Mindstorms Robotics Discovery Set
Retail $149.99
Value $165.00
Growth  10.0%
Annual growth 2.4%

9757 Touch Sensor

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 2
Availability Retired
9757 LEGO Mindstorms Touch Sensor
Retail $10.99
Value $15.03
Growth  36.8%
Annual growth 1.3%

9709 RCX Programmable LEGO Brick

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 1
Availability Retired
9709 Mindstorms RCX Programmable LEGO Brick
Retail $109.99
Value $118.90
Growth  8.1%

9738 RCX Remote Control Unit

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 1
Availability Retired
9738 LEGO Mindstorms RCX Remote Control Unit
Retail $19.75
Value $25.56
Growth  29.4%
Annual growth 1.0%

9755 Temperature Sensor

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 1
Availability Retired
9755 LEGO Mindstorms Temperature Sensor
Retail $23.99
Value $26.13
Growth  8.9%

9756 Rotation Sensor

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 1
Availability Retired
9756 LEGO Mindstorms Rotation Sensor
Retail $14.99
Value $15.90
Growth  6.1%

9758 Light Sensor

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 1
Availability Retired
9758 LEGO Mindstorms Light Sensor
Retail $19.75
Value $21.21
Growth  7.4%
Annual growth 4.1%
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My Collection

About Mindstorms 1

This was the first generation of the LEGO Mindstorms platform also known as the original Robotics Invention System.

1 consists of 20 sets that ran from 1998 to 2004. As of today, 3800 Ultimate Builders Set is the most valuable 1 set with an estimated new/factory sealed value of $668.
Read more