Tough call.
As far as actually watching the game and knowing everything that is happening, watching it in your living room is best, but at the same time there is something special about being in the stands.
That was my Obama answer.
Are any of your friends going to the game? Would you be able to sit together?
If most of your friends are not going to the game, then I would watch it at home and invite them over. If a few of your buddies are going to the game, then I would buy tickets. Either way, it is always going to be more fun in a group atmosphere.