I don't know what the students are like these days since I'm getting old and feeble, seeing as I graduated 12 years ago. But I will say that at least half, probably closer to 75% of the students I knew at SU were fans of other teams who only went to some games if they were against name opponents. One of my best friends was a Carolina fan for hoops, and Penn State for football (and he was from Long Island, so he quite possibly SHOULD have been an SU fan). He couldn't care less about SU, even after four years there. I knew a lot of students like that.
That being said - at least half, and probably more, became lifelong fans during their time at SU. Two of my other best friends - one from Detroit who was a big Notre Dame fan (his brother went there) and Michigan State (because, ya know, Detroit), and one from Boston, became two of the biggest SU fans I know. A third, from Philadelphia, has remained a big fan of SU as well despite not really giving a rat's arse about SU before getting to the school.
So as others have said, I think it's unrealistic to expect students to get to SU as fans. Most of them are local, and hell, even the people who aren't from CNY, like me, have connections that caused us to become fans at an early age (like my dad being from CNY).
I don't know what I'm trying to get at here, except I know it's kind of bizarre that THIS group of students is so lukewarm on SU considering how many excellent teams they've gotten to watch over the last few years.