If you've been to Heinz Field (I've been several times) -it's set up where people can stand in these turnstile things. Every game there are several thousand fans standing up there.
The concessions are horrible. If you leave for a snack as soon as the 1st half ends, you'll be back to your seat around the 10:00 mark of the 3rd quarter. EVERY game they have there are emtpy seats until the 10:00 mark or so of the 3rd quarter, then there are ZERO empty seats.
Today they all walked upstairs as usual. If you know any history of Steelers v Jags lately they have the Steelers number. They are the only team in the NFL that gives them the same fits without any luck involved. Whenever they know it's not a must win game you can take it to the bank theSteelers will not play well too.
The NFL is great in terms of booing. I don't agree with it in College, but if your team deserves it, you WILL get booed in the NFL. I heard the Pats fans booing them and throwing snowballs today. It doesn't matter how good you are, you WILL get booed if you deserve it!