Been thinking about this a bit with my Utopia team, DIV.
I can still sell out my bleachers, but my lower tier are bottomed out price-wise and not selling out anymore.
If I raise my bleacher prices, by say, a dollar, would that cause some fans to not buy bleacher seats and instead choose lower tier? Or do you think I'd lose them altogether?
If I remember the prevailing wisdom correctly, there's a pool of fans, each with a maximum price they are willing to pay to go to the game. The fan will buy the best ticket possible under that maximum price, if one exists.
Assuming the bleacher seats are not priced higher than the lower tier, then, any fan who is in the bleachers was either unwilling to pay the price for lower tier or those seats are sold out - which is not true for your example. Therefore, if you price them out of bleachers, they won't move up but instead will not buy a ticket at all.
I suppose I need to actually try to do better in Utopia so I can actually have somewhat useful data for my screwy arena build. ;)