LEGO Mobile Defense Tank 7706-1
LEGO Mobile Defense Tank (7706-1) is worth about $162 on the secondary market today, against a $47 retail price. It has 365 pieces, belongs to the Exo-Force theme and was released in 2006. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale market.
- Set number
- 7706-1
- Theme
- Exo-Force
- Year
- 2006
- Pieces
- 365
- Minifigures
- 2
- RRP
- $47
- Market value
- $162
- Used value
- $64
- Released
- 2006
- Retirement
- Retired in 2007
Minifigures in LEGO Mobile Defense Tank
Mobile Defense Tank value by year
From $51 in 2016 to $151 in 2026 so far: +199%. Its highest year was 2020, at $186.
| Year | Value | Change |
|---|---|---|
| 2026 (so far) | $151 | +24.5% |
| 2025 | $121 | −27.7% |
| 2024 | $168 | +0.9% |
| 2023 | $167 | −10.5% |
| 2022 | $186 | +44.3% |
| 2021 | $129 | −30.8% |
| 2020 | $186 | +25.6% |
| 2019 | $148 | +2.2% |
| 2018 | $145 | +29.3% |
| 2017 | $112 | +121.5% |
| 2016 | $51 | — |
Median of each year's market prices, sealed, in US dollars.
What you are paying for
Its 2 priced minifigures are worth about $21 together, roughly 13% of the set's value — about typical for sets with minifigures (typically 24%).
Frequently asked questions
How much is LEGO Mobile Defense Tank (7706-1) worth?
LEGO Mobile Defense Tank is worth approximately $162 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Mobile Defense Tank retired?
Yes — Mobile Defense Tank (7706-1) 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 Mobile Defense Tank gone up in value?
Yes. Mobile Defense Tank launched at $47 and now trades around $162, an increase of 245.0%. See the price history chart for how it got there.
What is the price per piece for Mobile Defense Tank?
At its $47 retail price across 365 pieces, Mobile Defense Tank works out to about $0.129 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Mobile Defense Tank a good investment?
Mobile Defense Tank currently trades 245.0% above its $47 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 Mobile Defense Tank so expensive?
Mobile Defense Tank was released in 2006 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.