No, i got your point. But you are infact playing the same game but a different sport. If your relying on the draft to give you the variety in games i cant see you hanging around for more then a season or 2. I think the difference your talking about aren't in the sim itself, apart from the draft, but are in the sports as a whole.
Lets face it its going to be game depth that keep people coming back to play season after season and which sport they prefer and understand better.