I have seen every brand of servos out there fail. This weekend I killed a 7955 hitec, it's not a shock, it's only three years old now. I also saw two savox's fail this weekend, they were the 1267 and a 1268.
My point is everyone will say mine last forever and I saw this one fail on a friends, so never buy that. It's complete BS, why? Because how do you know the "friend" had his endpoints set or the fact that maybe it was a freak failure. You dont.
You ask since I had a hitec 7955 fail will I buy a new one? Dang right I would. They simply rock, I'll send this burnt one in to hitec, wait a week or two to get it back and run it for a few more years.
For the record run nothing with under 200oz of torque for any servo in a 1/8 scale vehicle, set the endpoints correctly and you should be set.