LEGO 79117 Turtle Lair Invasion is a Teenage Mutant Ninja Turtles set valued at $382 for new and sealed sets, up 282% from an original retail price of $99.99. The set retired in August 2015 with annual appreciation averaging 11.31% since. Used copies are valued between $100 and $123 depending on condition. Secondary market prices for new and sealed sets typically fall between $354 and $500.
LEGO 79117 Turtle Lair Invasion is a Teenage Mutant Ninja Turtles Movie set released in 2014, containing 888 pieces and 6 minifigures. The set depicts the Turtles’ sewer lair with a surveillance room of multiple screens, a manhole cover entrance, a ladder, and a fan room. Play features include a trap function to drop barrels, an explodable wall, a hidden door leading to an elevating slide, and a prison with a cage door. Minifigures are Splinter, Donatello, Leonardo, Shredder, and two Foot Soldiers.
A new and sealed Turtle Lair Invasion is currently valued at around $382, with annual growth of 7.6% that is expected to level off to around 7.3% in the coming year. The average used price is $103 for those in good overall condition. Based on current trends, this set could be valued near $397 within the next year. New and sealed listings currently range from $350 to $429. The set was available for 13 months, from July 2014 to August 2015.