If you build a "football only" facility then your guarantee will be correct.
If you build a multi-use facility then I guarantee that the likelihood of other events being held there are more likely than in your scenario.
I've lived in the DFW area & I realize that Buffalo isn't DFW, but, there is no reason that Buffalo cannot attract events a tier balow what Jerrah's world does.
Field of dreams brother, field of dreams.