SvennoJ on 22 August 2012
Fear of compromises made to make it run on multiple systems.
I don't think FF13 was compromised on the ps3, maybe delayed a bit to wait for the 360 port. But where did all the lovely 1080p prerendered CGI go for FF13-2.
Another reason could be that you've already paid maximum price for a game, and now it comes a year later to another console with all the bug fixes, dlc, and other extras included promoted as the definite version.
