O.K.!
I was attempting to argue electric economy over fuel, but that won't work. You fuel guys are getting away with pretty cheap per-flight costs.
I've got $420.00 into 4 battery packs, a charger and a power supply. Even if I assume 750 charges per pack (they say 1,000) times 4 packs = 3000 ten minute flights it's $.14 per flight. But then we have to add the brushless motor & esc at $280.00 and now we're up to $.23 per flight.
It was just a thought.
I just can't help but feel bad when I read these posts about blown glow plugs, unglued carburators, vibration, things loosening up, fuel & castor oil all over the place, stinky smoke, etc.
I have a beautiful .60 size Schluter Champion in the workshop that's been collecting dust for 15
years for all the above reasons.
Well ... the bottom line for me is that I love my Corona! I can fly it inside in the lousey weather, and the noise doesn't bother anyone. In fact, you can actually hear the rotor beat slamming around the tailboom just like "real"! What a rush!!

I think the best part is that with the exception of a little lube and a daily inspection, there is NO maintenance.
Alright, alright ... enough!!
Happy flying
Russ