My wife, 2 kids and I went. We left about mid way through the 2nd quarter because we have a 1 year old and he can't make it too far into games with 6 pm kick offs.
Some mixture of the family goes to every game. We missed 2 seasons a couple of years ago due to living in Denver and missed the hell out of tailgating/football. Even when we're bad, we go. Although a lot of the time I'm the bitter one that wants to boycott going just because I hate to see us lose.
On another note, has anyone talked about raising the domestic 16 oz beer prices to 7 dollars? I spoke to a vendor and he said a lot of people were livid. That sure doesn't help the argument for return on investment. Prices on everything continue to go up.