I am a hybrid guy, actually. I have mostly glow engines and I fly majority .010, .020, .049 right now. I have bigger motors but have been on a 'small' plane kick for awhile. What I do, however, is get a 360 mah 2S Lipo battery and a micro-sized regulator and use that as my flight pack. It is lighter than NiCDs and not as fussy as NiMHs. and I can fly my little planes all day on one charge. Now, I do think there are applications for electric motor power. For instance, I have a twin turbo prop plane that would sound 'wrong' with piston engines. So electric motors make more sense there.

Tim