No way I could afford a Heli, and if I could I would want to skip past the R22 and get at least an R44 for safety/usefulness reasons.
Because of this, and because I love engineering and anything hard/complex, I picked up flying RC heli's. I have one that has a 5ft rotor and is around 6hp electric. It will do 100mph in a dive and is very very fast on the controls. When I spool it up, most people ask if they should be standing behind something. It's pretty obvious that it's dangerous.
A while after I started that, I got a chance to fly an R22, but only for a few minutes. It was at the state fair, and they had 3 minute heli lessons for $25, and if you could keep the heli inside of a 40 ft circle for 1:30 your name is entered into a drawing for heli lessons. I got to 1 minute before I couldn't control the pilot induced oscillation and asked the instructor to recover. The issue was that I didn't have any idea how much stick movement corresponded to heli movement. Add that to the honest 1/2 second delay between stick movement and heli changing directions, and I just needed more time to get a feel for how much stick I needed to control it well.
That all said, I know for sure if I had 20 minutes I could have been hovering it all day. The guy asked if I had flown before, and I just told him little ones, and he didn't believe me, but then he probably wasn't picturing a 12lb RC heli flying inverted either.
Anyway, some of the little ones are really interesting in how they don't appear to obey the laws of physics. Here is a good video that shows how good some people are:
https://www.youtube.com/watch?v=17lmeOfpxVUNotice how the head mass to weight ratio allows for an inverted auto at the end, and enough left to flip it right side up at the end. Also notice the flips while pirouetting.
So hopefully I'll get to fly big ones one day, but for now this certainly scratches the hard/complex itch.....