It is business, and i never understood why people get all caught up in it. Who cares if Favre goes to Minnesota? It's not selfish of him to go to Minnesota because he's turning his back on the "fans". The guy still thinks he can play football at a high level, coincidentally the team that believes he can is the Packers arch rivals. They're willing to pay him to start for them, and help them win. It's a situation that he fits in. It's business, he'll do it, oh well.
I can't fault him for that. Or anybody. If you worked at KFC for 20 years and they decided it was time for you to move on, because they have another young Chicken cook waiting in the wings. Is it wrong for you to go to Popeyes because you still think you can fry chicken?
Favre is going to play for the Vikings next year, and may play in the NFL for another 2-3 years. It's something Packers fans and all fans are going to have to deal with, because as long as he can still play he's going to do it, and he should do it. As much as i'm sick of the Favre coverage, at least you can give him a little credit for leaving Green Bay without a fight on his own terms. It would have been very easy for him to be like "no, screw you guys, i gave 16 years to this team, you're not forcing me out for a rookie, blah blah blah". The fans probably would have gotten behind him and made the Packers look terrible. At least he said "fine, if you guys want to move on, trade me, it's ok. But i still want to play".