The thing about the entertainment industry, is that it requires both positive and many times negative sidelines to stay in the limelight. Winning the superbowl is great and all, but how many people can name off the last 10 teams who've won it, compared to the number of people who know who Michael Vick is? The NFL will take him back, and everyone is gonna watch the games in which Vick plays hoping to see some cheap hits laid out on him. The negative publicity actually draws people to the sport. Not for the true essence of the sport. But to watch and hope they find something on the screen that justifys his presence in the sport. Whether it be true remorse, or an elbow to the juggular...
Personnally I don't believe he should be allowed back into the sport. In my mind sports stars should be idols, not thugs. But he has the potential to sell too many tickets, too many tabloids, he just has too much free publicity to just let him go.