to some, it might be overhyped. but to most, not really. its just that waw was not as good as cod4. and then when they heard mw2, well, people jumped on the game. you cant have too much good from something good huh?
the only area that black ops might be overhyped is that mw2 is pittiful and iw cant do shi* for customer/ player complaints and such.
so like someone posted before, hype sells games. nothing much. watch, iw will still get sales with just a flashy trailer and something that can top a crossbow and a ballistic knife.