uh, really. let's have a look at it. i sometimes work with carrara 6 pro, but it's unusuable except for the displacement painting (super easy sculpting mode). i got it for a veery nice price on the last christmas sale, $190 or so if i remember correctly. but you can't really use it because the sdvertised fbx exporter sucks badly.
it seems they got a new collada exporter. i have to test it, becuase that's what i need so badly right now. the 3d painting looks super easy and has been needed for such a long time.

so, test it, and if the exporters work, think asbout a purchase only if you can stand that since DAZ bought it, no interface change has been made or any really revolutionary feature has been implemented. get it while it's on sale, it's not worth the $500 it's probably going to cost after the sale period.