Maybe I'm just old and selfish but I don't have any desire to sit in sweltering games without access to a club level with AC and amenties. I'm also not in the boat that having a stadium on campus brings more people - winning brings more people. Maybe during your downtimes you'll attract more locals and students but in aggragate being ranked, winning games, being compeitive will drive attendance.
That said it's a done deal, I'll attend games when things cool off or at night, but if last summer was any indication of the future temps my couch is looking pretty comfy.