I don't fly heli's. I fly planes. Gliders, mostly. Electric gliders. I don't fool with gas anymore. I even converted my Ucontrol airplane to electric. Only thing bad about electric is, if you build a silhouette model, everythings exposed.
On a couple of my planes the electronic gear is placed in such a way that it gives the plane a sophisticated look. The downside to electrics are the batteries. You need a few and they ain't cheap. But they do last a long time and there's no mess with fuel and noisy motors. Well ... that last statement isn't exactly true. Some of the electric motors make as much, if not more, noise than the gas engines do. Just depends on the motors being used.
This last Christmas my oldest grandson gave me an RC heli. Never got to fly it. My #2 grandson went outside and broke it in a crash. Actually, not broke, but lost a piece of the balancer. Maybe I'll order the piece, if I ever get interested in flying heli's.