Dont confuse DLC and updates to fixes or promised content being added.
Dirt3 was released bug free and just added DLC/content that was already planned. FM4 was released with a huge steering assist bug, but quickly fixed within weeks. Now just DLC is added every month. Shift2 was released so bugged it couldnt be played with a wheel. After 2 patches it was better, but other things got broken. Support stopped for S2. Then you have GT5. Still major issues, still things not implemented that are on the box, and besides adding Spa....the rest of the DLC is pretty weak, and it seems to take them longer than any other Dev to do anything.
Right. And taking a year to get updates isnt a sign that they are supporting the game, its just a sign of how incompetent, or lazy, or both, at getting GT5 where it should have been at release.