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9747 LEGO Mindstorms Robotics Invention System thumbnail image

9747 LEGO Mindstorms Robotics Invention System
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9747 LEGO Mindstorms Robotics Invention System
  • Robotics Invention System thumbnail
  • Robotics Invention System thumbnail
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  • Robotics Invention System thumbnail
  • Robotics Invention System thumbnail

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Robotics Invention System since June 1999. Medium accuracy
LEGO 9747 Robotics Invention System was a 726 piece Mindstorms set released in 1999. The current value for a new, factory sealed Robotics Invention System is estimated around $193. On the open market, a used set will fetch in the range of between $76 and $99 depending on the condition.

For Sale (New/Sealed)
(US) NEW Lego Mindstorms RCX 9747 Robotics Invention System, Version 1.5
BrickEconomy Choice
$239.37

Sets in Mindstorms / 1

9735 Robotics Discovery Set

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 390
Availability Retired
9735 LEGO Mindstorms Robotics Discovery Set
Retail $149.99
Value $276.30
Growth 84.2%
Annual growth 2.7%

3803 Robotics Invention System Upgrade Kit

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 70
Availability Retired
3803 LEGO Mindstorms Robotics Invention System Upgrade Kit
Retail $24.99
Value $28.26
Growth 13.1%

9757 Touch Sensor

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 2
Availability Retired
9757 LEGO Mindstorms Touch Sensor
Retail $10.99
Value $14.78
Growth 34.5%
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 $118.52
Growth 7.8%

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 $26.71
Growth 35.2%
Annual growth 1.3%

9755 Temperature Sensor

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 1
Availability Retired
9755 LEGO Mindstorms Temperature Sensor
Retail $23.99
Value $26.06
Growth 8.6%

9756 Rotation Sensor

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 1
Availability Retired
9756 LEGO Mindstorms Rotation Sensor
Retail $14.99
Value $15.85
Growth 5.7%

9758 Light Sensor

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 1
Availability Retired
9758 LEGO Mindstorms Light Sensor
Retail $19.75
Value $333.50
Growth 1588.6%
Annual growth 13.1%

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Robotics Invention System Reviews

22 ratings
4.5
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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 $611.
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