The 2023 education and general fund budget for Penn State allocated 5.7% to equipment and maintenance and repairs of approx $2.5 billion in use. I assume that would include thing other than just lab equipment.
Overwhelmingly, most education fund use goes to salary, benefits and student aid (~$2 billion, 81%).
Interestingly the amount of money raised by tuition and fees almost exactly matches the amount spent on salaries, benefits and student aid. So one way of viewing it is that things like lab equipment are basically funded by grants, gifts, and state appropriations.
I assume this would be similar at Wisconsin in the late 90s, I doubt universities have changed much.
Maybe research budgets offer more flexibility and better equipment but I doubt the undergrads get to touch that stuff.
Source: budgetandfinance.psu.edu
Wow, you went down the rabbit-hole, much appreciated! Do I understand correctly, that your analysis boils down to the money is indeed being pocketed rather than used for equipment or improving anything at all at the university?