That's what I'm talking about, the first example. Series will run their course, some stick along longer than they should.
I'm interested in the ones that imploded upon themselves. I think EWJ 3D is a great example. A winning franchise toppled in one swoop.
I'm not sure about the Tony Hawk Franchise, or the Guitar Hero, that seems to be a developer hitting the well one too many times. (or in the case of Tony Hawk, desperately tacking on something new).