I watch a game if it's on, but I've never been to an NFL game in person. I was in the Bengals stadium once, but it was for a monster truck show (a friend had free tickets and was taking his nephew). That was kinda awesome.

I once went to a Cincinnati Reds game; friend had free tickets. I just found it kinda boring, with over priced beer and food. I prefer minor league games. They're still kinda boring, but the beers are like $5 and they just feel more fun.