listen to ssddx
ATH-M50's are the bomb. far better than nearly every model in a comparable price range.
i absolutely wouldn't let some questionable reviews about build quality prevent you from trying these out.
i've haven't owned mine for 2 years yet but they don't feel particularly shoddy, nor do they show any signs of cracking. not saying it wont happen, but like any good gadget - take care of it!.. and you'll likely avoid this. i wouldn't say the build quality is bad at all.
reviews are tough sometimes. i tend to avoid the extremes - 5 start / 1 star ratings. those are the more emotion-filled ones. some small part breaks..BAM horrible product blah blah blah. if you look at most of the other reviews on there, people will sing hymns about this headset.
you can always return it too if you feel the quality isn't up to par. but seriously though, try em out!
happy listening bro