The devil's in the details. It's my kids' activities which have kept me from attending games, not lack of transportation. But if there was a super cheap and convenient bus (otherwise, I would just drive) that would allow time before/after the game to spend some time around campus, I might be more inclined to attend a game, schedule permitting, of course.
On the other hand, you didn't limit the question to home games. If you were talking about a game at say, Nebraska, where we can crash on the bus and not have to worry about finding a hotel within 100 miles of Lincoln, maybe do some tailgating, give time to check out campus and the bar scene, well, sorry kids, Dad's going to be out of town Sept. 21st and miss your game.