My mother in law got me a 2-pack of R/C cars from Sams Club a few years ago and I played with them once for the reason you listed above. They absolutely sucked. I've been meaning to try to modify them and put a bigger motor in them.
My old 4x4 RadioShack truck never was that bad though for the most part. I always had fun with the thing, but unless it had a full charge it wasn't that amazing at climbing things.
If you don't mind spending the extra dough, the Axials are great. Look up Axial on YouTube and check out the videos of them. They literally treat them like a real 4x4 and they're electric.
All this talk about R/C cars is making me wish I would've asked for one of them for Christmas instead of a new tablet
