Best Buy Buy Back Program

[Chuckles 135]

Ok so I pre-ordered my EVO 3d last week at Best Buy and am using mostly gift cards to purchase it. I've been thinking about enrolling in the Buy Back program so when I am up for my upgrade again next year (I'm a gold premier member) I can get a phone that is as good if not better for very little up front. Any thoughts on this good or bad? Or is anyone else thinking of doing the same thing as me?