LEGO NXT Intelligent Brick 9841-1
LEGO NXT Intelligent Brick (9841-1) is worth about $302 on the secondary market today, against a $275 retail price. It has 1 pieces, belongs to the Mindstorms theme and was released in 2007. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale market.
- Set number
- 9841-1
- Theme
- Mindstorms
- Subtheme
- NXT
- Year
- 2007
- Pieces
- 1
- Minifigures
- 0
- RRP
- $275
- Market value
- $302
- Used value
- $49
- Released
- 2007
- Retirement
- Retired in 2016
NXT Intelligent Brick value by year
From $156 in 2016 to $305 in 2026 so far: +95%. Its highest year was 2023, at $350.
| Year | Value | Change |
|---|---|---|
| 2026 (so far) | $305 | +12.8% |
| 2025 | $270 | +53.6% |
| 2024 | $176 | −49.8% |
| 2023 | $350 | +33.3% |
| 2022 | $263 | +74.3% |
| 2021 | $151 | +1.7% |
| 2020 | $148 | −20.6% |
| 2019 | $187 | −16.8% |
| 2018 | $224 | +20.1% |
| 2017 | $187 | +19.7% |
| 2016 | $156 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO NXT Intelligent Brick (9841-1) worth?
LEGO NXT Intelligent Brick is worth approximately $302 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO NXT Intelligent Brick retired?
Yes — NXT Intelligent Brick (9841-1) 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 NXT Intelligent Brick gone up in value?
Yes. NXT Intelligent Brick launched at $275 and now trades around $302, an increase of 10.0%. See the price history chart for how it got there.
What is the price per piece for NXT Intelligent Brick?
At its $275 retail price across 1 pieces, NXT Intelligent Brick works out to about $275.000 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO NXT Intelligent Brick a good investment?
NXT Intelligent Brick currently trades 10.0% above its $275 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 NXT Intelligent Brick so expensive?
NXT Intelligent Brick was released in 2007 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.