Unless you're in a Power Five Conference, your football team is pretty much irrelevant these days. I can sit at home and watch college football from 5 p.m. Thursday night until after mid-night on Saturday. (Not to mention NFL games on Thursday nights now). I can watch my alma mater via the Big Ten Network, I can watch all the local Division I teams (Boise State, Utah, BYU, Utah State), and I can watch just about every top 25 team -- live or via my DVR. If I lived in the Portland area, why would I get out of my easy chair to fight traffic on a cold and rainy night in Portland to watch FCS football?
The Mountain West is not much better: here were the attendance figures for MWC games on Saturday: UNLV--13,419, Nevada -- 20,508, San Jose--17,887, Hawaii -- 24,761 and Fresno --32,164. Certainly better than attendance for most Big Sky games, but not great. Unless your team is highly successful, it's going to be tougher and tougher to draw fans to live football. Heck, even Power Five schools like Michigan and Michigan State are having a hard time filling their stadiums these days, and the NFL is trying to figure out how to not kill their golden goose as HDTV and high prices make attending games less and less attractive compared to staying home and watching on TV.
And as noted above, if you're in a major market like Portland, Sac State, UNC or Weber, you have a lot of other battles to fight for people's attention. The only thing keeping these programs alive is body bag games against FBS schools, and subsidies -- student fees and appropriated dollars from the state. That extends to most of the MWC schools as well, even though they get nice checks from television revenue. Most are still heavily subsidized.