I figure airlines and hotels use an algorithm computing whether a flight/hotel is filling up as fast as the model predicts, and if not, the price drops, and vice versa. We've experienced the obvious huge shifts in prices flying to France in summer versus winter. I'd guess they have fewer flights in winter as well. Hotels can't do that of course.
I just booked a Doubletree in Gainesville, FL for $111 (pretax) for January. We like to break up the drive to North Port going down.
College football programs could make more if they priced the way Stubhub does, I'd guess. Maybe they will offer that at some point. Maybe TV is so dominant it's not worth it.
There are no stadium expansions going on now, are there?