LEGO 3803 Robotics Invention System Upgrade Kit is a Mindstorms set from 1999 valued at $43 for new and sealed sets, up 74% from an original retail price of $24.99. Annual appreciation has averaged 2.07% since release. Used copies are valued between $29 and $40 depending on condition.
LEGO 3803 Robotics Invention System Upgrade Kit is a Mindstorms set in the Mindstorms 1 subtheme released in 1999, containing 70 pieces. It was designed to upgrade Robotics Invention System 1.0 to version 1.5 and includes a V1.5 CD-ROM, a user guide, a constructopedia, and a Test Pad. The set also provides 65 Technic elements, including black axles and liftarms, gray and blue connectors, blue and white rubber belts, a white gear, and a sticker sheet.
A new and sealed Robotics Invention System Upgrade Kit is currently valued at around $43, with annual growth of approximately 2%. The average used price is $36 for those in good overall condition. Based on current trends, this set could be valued near $44 within the next year.
Robotics Invention System Upgrade Kit has become a rare set, as set 3803-1 has not been seen for sale in new/good condition online or in retail for over one year. Its actual value is likely above the current estimate.
The last brand new Robotics Invention System Upgrade Kit was sold on eBay.
There are currently no new/sealed listings available for Robotics Invention System Upgrade Kit at this time.
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