a bleacher charge $10 need 20 games to payback, while charging $20 only need 10games
this isn't completly rigth, because a price reduction especially in the bleachers to fill the place affect the income in this category.
But it shows pretty efficient to target for low prices, and also put something back into the arena, so i won't say that it stop his developement - at least in germany the team who start to expand there arena pretty early ae the guys who are able to get from the fourth league to the second or one.