That's how it is at Tech, or at least was last time I checked.
I think some people are looking into figuring out a different way to do it but I kind of like the system. Sucked a little when I was in school having to go line up 3 or 4 hours before the game so I could get at least two spots next to each other but I think under a reserved ticketing system you would have a lot of students not showing up until just before gametime and the raucous atmosphere would suffer for it. I like having a completely full student section getting rowdy during pregame 2 hours before the game starts.