Ok first start and think, if you crash a car you might break something, if you crash your heli you are almost assured of breaking something... Next, even if you are good at flying a 3D heli and can make it go upside down, what are you going to do cut your grass with it? We had a heli club in Vietnam and a bunch of guys started flying together, sounded cool right?? Well watch two of them collide in mid air then see how fun it is, watch a crash result in a punctured lipo battery and watch your $300-$600 or more heli burst into flames before you can get to it. Then if you lose control, what about the danger in it, I mean yes a nitro car can mess someone up and kill them too but a rotor with blades........ Also with a car as you said you can go to tracks, races, even hang out with friends or chase the neighborhood stray dog with it...