LEGO Spidermonkey 8409-1
LEGO Spidermonkey (8409-1) is worth about $81 on the secondary market today, against a $22 retail price. It has 21 pieces, belongs to the Ben 10: Alien Force theme and was released in 2009. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale market.
- Set number
- 8409-1
- Theme
- Ben 10: Alien Force
- Year
- 2009
- Pieces
- 21
- Minifigures
- 0
- RRP
- $22
- Market value
- $81
- Used value
- $12
- Released
- 2009
- Retirement
- Retired in 2011
Spidermonkey value by year
From $15 in 2011 to $71 in 2026 so far: +381%. Its highest year was 2019, at $81.
| Year | Value | Change |
|---|---|---|
| 2026 (so far) | $71 | +14.6% |
| 2025 | $62 | +30.2% |
| 2024 | $48 | +6.2% |
| 2023 | $45 | −0.7% |
| 2022 | $45 | −10.5% |
| 2021 | $51 | −32.9% |
| 2020 | $75 | −7.4% |
| 2019 | $81 | +33.6% |
| 2018 | $61 | +39.0% |
| 2017 | $44 | +41.1% |
| 2016 | $31 | +10.8% |
| 2015 | $28 | +14.3% |
| 2014 | $25 | +16.7% |
| 2013 | $21 | +19.6% |
| 2012 | $18 | +18.7% |
| 2011 | $15 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Spidermonkey (8409-1) worth?
LEGO Spidermonkey is worth approximately $81 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Spidermonkey retired?
Yes — Spidermonkey (8409-1) 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 Spidermonkey gone up in value?
Yes. Spidermonkey launched at $22 and now trades around $81, an increase of 268.8%. See the price history chart for how it got there.
What is the price per piece for Spidermonkey?
At its $22 retail price across 21 pieces, Spidermonkey works out to about $1.048 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Spidermonkey a good investment?
Spidermonkey currently trades 268.8% above its $22 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 Spidermonkey so expensive?
Spidermonkey was released in 2009 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.