It doesn't take a Kreskin.
1 - There are an amazingly large number of well compensated overhead positions and offices compared to the 90s.
My alma mater, a large state university literally had to buy a 9 story office building to house administration.
2 - They spend money like water.
Example: The student internet network was run when I was there in 1996 by three telecom/network guys and a little army of student helpers who did installs and support for $4.25/hr. Now the costs are 25x, and the contractor has also built a small office building next door to house their people.
Example: Capital costs run amok. My alma mater has built a Tier-4 data center that is 15% occupied, a football stadium, a monumental second library that doesn't contain many books but does contain a lot of marble, a business school building, an art building, a bunch of extra dorms, and a gas fired power plant.
Example: New dorms are hotel like, with multiple fitness centers, TVs approximately every 10 linear feet, and associated parking structures.
The school I'm thinking about is doing well, but they've probably bonded nearly a half billion worth of capital projects alone that are not research funded. If you had 0% 30 year bonds that's over $1500 a student alone for 30 years assuming 10,000 students.