Set prices › MINDSTORMS › 3804

LEGO® Robotics Invention System, Version 2.0 3804

MINDSTORMSRCX2001720 piecesRetired

Value new · sold average, 6 months

$167.78

BrickLinkNew listings, shipping to the USSee listings ›BrickLinkUsed listings, shipping to the USSee listings ›

Prices updated Oct 7, 2026, 23:31 UTC.

Used · sold avg, 6 months—Too few sales

Price history

NewUsed

Monthly average of real sales, in USD at today's exchange rate.

What is LEGO Robotics Invention System, Version 2.0 3804 worth?

A new, sealed Robotics Invention System, Version 2.0 (3804) sold for $167.78 on average over the last six months, across 1 sales. LEGO no longer sells it in the US, so collectors set the price.

Set facts

Set number: 3804
Pieces: 720
Released: 2001
Theme: MINDSTORMS
Price per piece: $0.23
Status: Retired

Questions

Is LEGO 3804 Robotics Invention System, Version 2.0 retired?

Yes. LEGO no longer sells Robotics Invention System, Version 2.0 in the US, so its value now comes from what collectors pay for it: $167.78 new on average over the last six months.

How are these prices calculated?

Values are quantity-weighted averages of real sales of the set over the last six months, updated every night. LEGO retail prices come from Brickset. Other currencies are converted at the European Central Bank's daily rate.

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