Soundtrack, a REAL making of documentary, and that's all I really need.
But when it comes to PS3 LE's, if they don't start making the extra disc a bluray disc as a standard for hours of high-def behind-the-scenes footage, with mocap sessions, voice rec sessions, and just full blown everything, I'm going to be very disappointed.
MGS4 LE was the step in the right direction, but not far enough. Halo 2 and 3's LE discs both steps in the right direction as well.
DMC4 not so much on the documentary front, but I do appreciate the anime dvd (then again, it was fucking $84).
So yeah, I just want more blu-ray.