Playing Troy as opposed to Chattanooga generates a hell of a lot more revenue for the program. Full ass stadium for starters.
Just off the top of my quickly balding head, I believe Troy has played:
Nebraska
Miami
Clemson
LSU
Tennessee
Ohio State
Oklahoma State
Iowa State
Georgia
South Carolina
Miss. State
Arkansas
Florida
Florida State
They have games already scheduled with Miss. State, Ole Miss and South Carolina in the next 3 years and now with Boise State. But somehow, it would be a bad thing for us to schedule them because we're worried about how the media would turn on us should we lose? Yeah, that would be something different.