Great discussion!
I'm a glow-person myself, but can absolutely see the advantages in electrics.. Many, if not all, points has been listed in prevous posts. (Servo current drain/flight..?).
But for me, the sound, smell and smoke is in itself priceless.... Sure my engines have stopped in the middle of a competition once i a while, but that's competition for you... I've seen electric guys land premeturely as well, unknown the cause.

There is one issue not yet covered - flight time.. And not minutes per flight, but total "in-air" time once on the field. Until recently, LiPo packs took hours to charge... If one wanted a good 4-5 practice flights, he had to spend a fortune in 4-5 battery packs. (Correct me if I'm wrong, as I'm a novice in electrics.. - These are my observations only). With glow, you can fly as many flights you want as long as you have fuel and radio batery. Fuel is of course...free...? Using a NiCd-pack, you can charge these batteries in a blink of an eye. (I threw out my LiPo and Li-Ion reciever packs due to long charging times...).

I know however, that there has been great development recently on the battery side, and charging times are probably down.
So maybe, just maybe, one day....
My next project is already planned fitted with noisy, smelly, smoky and lovely YS power