I started out with r/c cars back in the 80's. Built a Tamiya Monster Beetle, Tamiya Wild Willy, Tamiya Big Wig, Tamiya Clod Buster, and a AE RC10 (to original gold tub chassis).
A few years ago I got back into r/c cars and built an HPI Pro3 just to mess around with.
I realized I was getting bored with cars so I went towards r/c helis and never looked back! I've only got 1 r/c heli, a Hirobo Sceadu 50, but it's plenty heli for me.
Yes, a heli is damn hard to fly when you're starting out. The only way to learn is getting stick time on a simulator. I didn't have anyone else to learn from because everyone at my flying field flew planes. There was supposed to be another heli guy but I never saw him whenever I went.
I'm okay at flying. Doing the crazy "3D" flying they do with helis is not something I can do comfortably. Maybe because I don't like the prospect of rebuilds if I crash.
If you want to see what r/c helis can do then check out the following site: http://www.augustoheli.com/videostuff/videoarchive/default.asp
specifically check out the vids for Alan Szabo, Curtis Youngblood, Jason Krause, and Todd Bennett.