Much cheaper to build back then for the old ones, and it’s outdoors so the overhead is lower. That and ticket sales are still reasonable, unlike pro sports as well.
Are you kidding?
IF I wanted to get season tickets from my school I'd first have to make a "contribution" to the athletic department...somewhere north of $10000.
Then, IF, I'd contributed enough I can buy seats....in the end zone.
And that's only for select home games.
To get the good home games and the away games is more.
Then there's a parking fee.
I estimate to sit on the 25 yard line is about a $18,000 "investment".
If I go to a game I'd rather buy the tickets off stubhub or some outlet like that.