Target Audience. This is something too many studios forget to really analyze before creating a game.
Transformers is a mass consumer IP, not a core gamer IP. FPS or not, the game itself did not appeal to the gamer segment that is the predominate owner of HD consoles.
Had they not gimped the fuck out of the Wii version and advertised in mass consumer media vs gaming centric media, the game would have sold far better.
I don't buy Shooters on my PS3 because I don't like dual analog. I would have bought it on my Wii had it not been so gimped. Now, I just wait for Battlefield 3 on my PC and passed on the best Transformers game to date. I actually love Transformers as well, so I was pretty let down at what became the final product available.
EDIT: It would have helped if both HD systems had the demo too. I didn't even get to try it out.
