Airplanes/Drones/Helicopters are usually always connected to a computer or something so it is easier to manupulate settings and configurations. Not to Mention most that use crs dont even get into higher end radios. its 90% RTR crap now. also once one make the jump to a high end radio you usually just stick with that. a friend of mine actually ask me this question yesterday. and that the only reasoning I can come up with. I just dont thing there is much market/Need for it.

Where as my Air stuff I have Blade/Spektrum, FrSky, Futaba, Hubsan, Crossfire, etc. Just got the Radio Master TX16S so I can incorporate all into one. just have to actually do it..