What do you think? Keep or sell?

[A RC Dude]

Ok, I just had my 3rd MM ESC to mess up on me in my rustler and this is my 2nd or 3rd motor that i'm on now. I've had 2 LiPo's go bad in that car (not doing anything wrong. thay've never gotten hot, their voltage never got too low untill a cell started going bad, i've never touched + to -, i've always stored them at around 6.5-6.8v, and haven't abused them in any way). My rustler is just a very unreliable car for me. The past year i haven't gotten but one full charge threw it without something messing up (it's usually the electronics). So i'm tired of it, my e-maxx runs much better so far and it needs new batts and diffs so i'm really thinking of sending the MM stuff back, fixing/replacing it, selling it, selling the electronic, and then selling the rustler as a roller to get money out of it to fix my e-maxx or to get a mini e-revo to replace it. I bet the e-revo will run much better and be more reliable.

So what do you guys think i should do?