I don't think getting a RTR hinders your ability to fix the RC at all. You just figure it out when something goes wrong. Plain and simple. All I have is RTR and when something breaks I fix it. I usually have to figure it out but it gets fixed. I don't have time or desire to build one myself.

Anyways in the current market it looks like there are less and less kits being offered. It is all RTR and the offerings are pretty good.

That's just my 2 pennies.