Hmm...good point.
I guess I've just always been inclined to believe subconsciously that a servo or a motor lasts forever, even after I've had a servocity power servo die on me before. I'll definitely keep that in mind when mounting motors and servos. Incidentally, since power servos from servocity are so expensive and they can die too, maybe I should just get into building my own servos using a cheaper gear motor and a potentiometer.