o·ver·rate (Å'vÉr-rÄt') Pronunciation Key
tr.v. o·ver·rat·ed, o·ver·rat·ing, o·ver·rates
To overestimate the merits of; rate too highly.
.com has proven itself, but more importantly it has had the time to prove itself.. therefore .com cannot be called overrated.. it is what it is..
but calling any new extention overrated without waiting to see what pans out is.... well, wishful thinking..