The primary selling points of the PS3 version were the "mods" (as if maps and the odd new model should count as a mod) and the kb+m support, but I don't know... UT at sub-60fps doesn't feel right. Then again, UT3 doesn't feel like it has much of a reason to exist, really. Updated graphics, some new game modes, but it's really old hat for anyone who has played UT2k4.
That, and I really don't think UT needed the "grungification."