I've got cars and planes and the cars are fun but NOTHING is more exhilarating than flying a plane and getting it back on the ground without so much as a little bounce. Besides I don;'t think I've ever driven my cars that I didn't have to fix something. I RARELY have to do anything to the planes other than general MINOR maintenance. Poking a hole in the wing on the way out the door is about the worst that happens (unless you crash of course) Seeing a plane you built lift off the ground and fly is indescribable