Great point. There are what, 1500 or 2000 student tickets sold? Hilton seats just over 14k. Who should be filling those other 12k seats? Hint: it isn't students.
Understand. However it is much easier for students to attend. They live across the street for God's sake. They don't have families to worry about paying for. They don't have mortgages yet. Tickets are relatively cheap, and probably already paid as part of season tickets. Don't have parking to worry about. This is their fellow students they should be supporting, good or bad. They are the ones that should have the most school spirit.
But yes, everyone should be picking up attendence.