There is one advantage to getting games late: You'll know if they're any good by release date time. Section 8 is an example. The derivative shooter from Time Gate has been out on the 360 and PC for over six months, and hasn't exactly set the world on fire during that time -- X-Play's 2 out of 5 review was echoed across most outlets.
Originally the game was announced as a PS3, 360 and PC game, but the PS3 version didn't drop back in September, leading many to assume that it was canceled. Nope. According to IGN, It's still coming, although no date has been announced.
There's always the chance that the PS3 version will contain the DLC released for the 360 version, and that improvements will have been made. If so, and it was offered for a slightly lower price, Time Gate might be on to something.