I agree with you a bit on the impending dominance of electric RCs.

I've been a avid r/c heli enthusiast for some time now and around 4 years ago, the idea of an electric heli outperforming a nitro one was a pipe dream. Now, we have e-helis that can do everything (and them some) nitro helis can do. They all have amazing performance. All that's limiting them is the high price of batteries (try 32 cells) as well as brushless motor setups.

But I'm sure economics will bring the price down when the market accepts it.

By then we'll probably have "simulated" nitro engine noise for those who can't run RC without the roar of IC engines.