Hmm... I find that the research, ideas and development of my RCs is what keeps me focused. What if? I wonder what that would do. I have only had RCs for less than a year, and collected 6. Maverick as my intro, two firestorms, two is always better right? An E-Maxx, for something larger, and a revo to see how it was different. The challenge of learning how they work has kept me entertained for a year, and I do enjoy getting out and about with mates, or my cousin and seeing the feats they can perform.
I think I need to look at racing to indulge my competitive side, and give measure to the tweaks and improvements I make. It's just unfortunate that there don't seem to be any off road tracks nearby :/
Edit: Forgot to include my AX-10 Crawler in the list... just for something different again, to learn some different skills