LA-seelenjaeger:
Well "you can change prices whenever you want" isnt completely true in real life either. Nowadays, you have to sell tickets in advance, and you usually cannot change prices after they went "online". I don´t know any team which isn´t selling their tickets 2 months in advance once the season has started. That´s kind of "you cannot change prices" too, as you have to plan the season quite some time before knowing your position in the league at the very point of the game.
You need to decide what is true - should or shouldn't be like real basketball team managing.
You keep changing your opinion upon need.
You cannot change prices, but it is also not possible to build during season (especially not when playing at that arena).
At the very least not near the place that you are building seats.
In addition, if you cannot change prices, why aren't you against current status when you can change prices three times a season?
Users get the option to adjust the prices of the seats they defined at the start of the season.
They should also get some ability to adjust the prices/seats balance due to a change of the seats they've built.
This suggestion basically give them the option to do so for some fee.