I think there has only been once that seating has been any sort of issue, and that was Saban's first A-Day. I make the drive from Mobile each year, and I'm more worried about there being too many empty seats, than there not being enough.
The great thing about it is you can pick where you sit, so it is a good chance to sit someplace you usually wouldn't. In that regard, you might want to be mindful about getting in there early enough to pick the seat you want. However, you can take in all the activities and still probably avoid the upper deck/being right in the sun, if you don't wait until right before the game starts to get inside.
