I buy plenty of multi-console games, but I dont like it.
Everytime I play something put out by Ubi or EA or someone that is a multi, and the framerate is 30 and the graphics are sub-par, I just think of how that title might have improved if development time had not been split.
Since I always end up buying all the consoles, for the exclusive titles, I just wish that each title's development could be concentrated one console at a time to really make the most out of the hardware. Middleware resources rarely yield statisfactory results and multi-console releases propgate middleware.
Now, I have no issue with a game being developed for one console, and then ported at a later date. I own many duplicate copies of fighting games due to this.
But then Soul Calibur 2 was triple ported and BAM! PS2 slowdown.