LEGO Robotics Invention System V2.0 3804-1
LEGO Robotics Invention System V2.0 (3804-1) is worth about $360 on the secondary market today, against a $324 retail price. It has 717 pieces, belongs to the Mindstorms theme and was released in 2001.
- Set number
- 3804-1
- Theme
- Mindstorms
- Subtheme
- 2.0
- Year
- 2001
- Pieces
- 717
- Minifigures
- 0
- RRP
- $324
- Market value
- $360
- Used value
- $111
- Released
- 2001
- Retirement
- Retired in 2006
Robotics Invention System V2.0 value by year
From $212 in 2016 to $248 in 2026 so far: +17%. Its highest year was 2018, at $410.
| Year | Value | Change |
|---|---|---|
| 2026 (so far) | $248 | +0.5% |
| 2025 | $247 | +5.8% |
| 2024 | $233 | −9.5% |
| 2023 | $258 | +9.3% |
| 2022 | $236 | −20.6% |
| 2021 | $297 | −3.3% |
| 2020 | $307 | +7.8% |
| 2019 | $285 | −30.5% |
| 2018 | $410 | +36.7% |
| 2017 | $300 | +41.6% |
| 2016 | $212 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Robotics Invention System V2.0 (3804-1) worth?
LEGO Robotics Invention System V2.0 is worth approximately $360 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Robotics Invention System V2.0 retired?
Yes — Robotics Invention System V2.0 (3804-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Has LEGO Robotics Invention System V2.0 gone up in value?
Yes. Robotics Invention System V2.0 launched at $324 and now trades around $360, an increase of 11.0%. See the price history chart for how it got there.
What is the price per piece for Robotics Invention System V2.0?
At its $324 retail price across 717 pieces, Robotics Invention System V2.0 works out to about $0.452 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Robotics Invention System V2.0 a good investment?
Robotics Invention System V2.0 currently trades 11.0% above its $324 retail price, and it is retired, so no new supply is entering the market. Past performance is not a prediction — condition, packaging and how long you hold all affect what a set actually sells for. BrickStats reports the numbers rather than giving investment advice.
Why is LEGO Robotics Invention System V2.0 so expensive?
Robotics Invention System V2.0 was released in 2001 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.