If the NFL thought they could make more money by hosting games in college stadiums a few times a year they'd have done it by now. As someone said up thread, gate revenue is actually a pretty small fraction of the NFL's total revenue. A bonus of that is that NFL tickets are actually pretty affordable despite it being a huge-revenue league (#1 league in the world if I recall).
The ticket prices if they hosted a game at a college stadium would have to be a significant, I mean significant markup in order for them to come out ahead as opposed to just a regular game at the team's normal stadium.
The ticket prices if they hosted a game at a college stadium would have to be a significant, I mean significant markup in order for them to come out ahead as opposed to just a regular game at the team's normal stadium.