I'm with Britbrat on this one. For many of us, its about cost. For example, take a look at a H9 Twist. $99 for the arf, you still need an rx and servos. To power via electric, you'll need a half decent sized brushless motor. At the very least, cost ya $100. Then, your gonna need a brushless esc. Probably close to another 100 bux. Electrics are all about keeping the weight down. So, you use lipoly battery packs. These sure as heck aint cheap!!! So, I'll give electric the benefit of the doubt, $80 on the pack. Oh, and don't forget you are gonna need a lipoly charger too. So, your at the field with your new twist with a Hacker or AXI or Plettenberg motor. You fly your plane and land. The guy next to you also has a twist but it is powered by an OS .46. While your waiting for you batt to recharge,
he re-fuels in about 1 or 2 minutes and is back in the air. You figure, man I'm gonna need some more lipoly packs!!! More $$$$.
The point here is once you get to a certain size, its not economical to run electric unless your related to Bill Gates. Power for power,
there's not a brushless system in the world for $109 that matches an OS .46. I also don't buy the "I fly electric now because I don't like the smell or mess of glow engines and, the engines are too hard to tune etc. etc." which is what the electric zealots tout. Get a good named brand engine and you won't have tuning problems. As far as the mess, takes me about 2 minutes to clean my planes.
I fly both, electric and glow and I also run brushless on my 1 pound and under planes. I get as much enjoyment out of them as I do on my glow aircraft. Cost savings = more planes!!!! And as far as I'm concerned, lipoly packs are 40 to 50% overpriced. And lets not forget the safety factor when charging them!

Dave...