Extreme Engines

As a retired sub-$10 Creator 3-in-1 set from 2018, Extreme Engines has steadily ticked up in value on the secondary market due to its general popularity and strong parts utility. While it won't yield massive cash returns like a retired modular building or UCS Star Wars set, small impulse-priced Creator sets often command steady, reliable growth among sealed collectors and parents looking for nostalgic gifts. The real investment appeal here isn't necessarily sealed box speculation, but rather the excellent parts pack value. Containing versatile dark azure curved slopes, white brackets, and standard wheels, part-out sellers and MOC builders frequently seek these out. Overall, it sits comfortably in the solid B category for modest, low-risk collecting.