I find that my "poor" students come up with money for things that are on the top of their priority lists (e.g., iPhones, Nikes, spring break, going out, video games). When football games become a priority, they will come.
We will clearly never agree on this, so I promise to stop posting after this. But in this scenario, they would never have to FIND the money to pay for these tickets, Its FREE (I use this term because they only swipe their card for entrance). Money is a barrier for college students, yes they sometimes find the money for the things you mention but in this case they don't have to find the money. You still haven't provided one reason why this would be a bad idea? Other schools do it, 128 other schools in fact so it wouldn't be an issue. It would just be another expense of college, which there are many.
On another note, kids buy iPhones because its the new technology that lasts them 1-2 yrs and they want the best. They want to show it off to there friends (its terrible, but true).
Spring break- Most fun I'v ever had in my life. Its the experience, a week of hanging out with friends and partying.
Going out- College guys will go anywhere to mingle with girls, and if you pre game properly your only spending 20 dollars a night and lets be honest, every guy going out, okay most guys are looking to get lucky.
Video games last several months and give you something to do in the down time with your friends when your not studying. Everyone in the dorms and off campus housing are playing video games, its how you connect with other people now. We hold madden tournaments or the such all the time. Make drinking games out of them (may sound like it but I swear I'm not an alcoholic)
There are reasons kids find money for this stuff and not a weekly football game, and yes you are right that if the team is good then more students will come, but again there is no reason to keep barriers in place to keep kids from coming and no matter what you say about kids finding money when they want, paying 20 dollars a week is a major barrier (even if it is only 6 weeks, but then you get into basketball season). But even if the teams are good, kids aren't going to pay 20$ for the less then ideal mathchups.
To your "most colleges don't serve", your right. But that is also another perk for SU, they do serve. Obviously they would never use that as a selling point, but it would be foolish to think kids don't think or know about that.