Carbon brakes like to be at around 300 C. Least wear and most efficient. Also the wear is related to the number of applications and not the energy absorbed. (At least that is what we were told when we had carbon brakes fitted to the A300).
As an aside, back in the early '80s, on the BAC 1-11, Laker were using reverse idle and lots of brakes whereas BCAL were using lots of reverse and little brakes. I don't know which was more cost effective, but Laker went bust and BCAL was swollowed up by BA.