LEGO 8637 Volcano Base is a Agents set valued at $463 for new and sealed sets, up 561% from an original retail price of $69.99. The set retired in April 2009 with annual appreciation averaging 5.57% since. Used copies are valued between $152 and $189 depending on condition.
LEGO 8637 Volcano Base is an Agents set released in 2008, containing 718 pieces and 6 minifigures. The set depicts Dr. Inferno’s volcanic hideout from Mission 8, featuring a lava pit monorail system and a giant laser cannon, plus an Agents turbocopter equipped with a capture net. Minifigures include Agents Chase, Trace, and Fuse, and the villains Dr. Inferno, Claw-Dette, and Fire Arm.
A new and sealed Volcano Base is currently valued at around $463, with annual growth of approximately 6%. The average used price is $157 for those in good overall condition. The 6 included minifigs account for approximately 22% of the set's total value. New and sealed listings currently range from $562 to $589. The set was available for 8 months, from August 2008 to April 2009.