Well that's obviously basic economics isn't it? The commodities you are speaking of sound as if they are very much price elastic. Not all commodoties follow this rule. All they need to be concerned about is finding the equilibrium point that maximises revenue, not seats sold as such. It's up to their marketing department to ascertain the correct pricing structure to maximise that revenue.
For example, which is better? Selling 20,000 seats @ $5 each=$100,000 revenue
Or selling 10,000 seats at $11 each=$110,000 revenue
Withstanding long term benefits from gaining potential brand loyalties with the first option, ceteris paribus, option B is better. It's obviously a good time to strike currently to lower the price a bit, offer top quality football or a winning football team, and see if long term you can sustain those people through the gate through the building of loyalty to the club.