Why CSU is a very good question. The $225 million was 100% borrowed since donors failed to donate, so finance costs.  In fact, the debt for football is astronomical - the stadium plus nearly $8 million annually.   The new stadium was strongly opposed by students, faculty, local residents, alumni and even many CSU season ticket holders. 
We had a profitable, popular football stadium with great tailgating on the foothills campus.  Pres Frank let it fall into disrepair - deferred maintenance he called it -and took the profits.
The new stadium, now embedded in the dorms and taking 15 acres of prime land grant academic land, was fraught with dishonesty to "get it done".  There was no "conversation", just Tony Frank spinning to the appointed Board of Governors who failed to do the job of academic and fiscal oversight. College enrollment trends are down, CSU did not make enrollment (tuition) projections this year as is attendance at college football games.