I'm not sure how you guys feel about this, but last year I bought an authentic Minnesota Twins jersey, but the way players move around I did not want to have some guy's name on my back that might be playing for the Yankees the next year. For the extra bucks, I had my last name put on the back. Maybe a little egotistic, but hey, I will be a Twins fan for life (as well a the Bills fan).
My 0.02 worth.