Sitting down and being able to see the field is not a option for everyone. For instance the people who seat in rows 1 and 2 behind the team, usually have to stand because the team is standing and often stand on the benches on the field. So if the people in rows 1 and 2 are standing, those of us in rows 3 and 4 have to stand in order to see the field and this continues on up the section.
Even if you can see the field sitting down, you should be able to stand and cheer without being harrassed or made to feel like you are inconveniencing someone. I don't agree with the "if you don't want to stand, you should stay at home" way of thinking. If you want to sit and cheer, do that, but don't think that you have the right to censor how others choose to enjoy the game. Everyone paid the price of admission, and as long as you are not violating the University's policies regarding behavior in the stadium, you should not be reprimanded as if you were acting up in a classroom.
With 3 jumbrotrons, everyone ought to be able to see the game, whether sitting or standing.
Attending an Bama football game is not a right; it's a priviledge.