IMHO , it sounds like you have the money to buy the truck so go ahead and buy it while you are able to buy such an expensive rc vehicle. Yes I am going down that road now, I fly but have been looking at the trucks and off road buggies in TH and they are very appealing.
I have a battery powered motor cycle I bought from Radio Shack and I get a kick out of it every time I run it at the field where I fly.

I am planning on getting a glow powered bike as soon as I finish doing research on them.