1.) i believed the changed it when taxining the first div, but it is ok the first div earn enough ;)
2.)
How sensitive is pricing to winning?
don't know that we germans make a good pricing analysys, but the two cheapest categorys are very sensitive of winning and loosing the vip lounge normally get selled anyway if you on a good or bad streak.
Is there some sort of revenue ratio that appears to be optimum -- that is, bleachers, lower tier, courtside all should produce similar levels of revenue?
on the hand hand this depends on sucees so i can not give an generally advise. But the lower the prices get, it become harder/takes longer to get your investment back. So don't minize one of your categorys and try to keep your different categories in the same range of the pricing.
I may rise to Div III next season but I am afraid not many fans will want to watch me go 2 - 20.
don't be afraid a unsuccesfull team makes nearly the same money then an succesful team one league below. But if you think you getting unsuccesfull, maybe it could help to build more expensiv places, because that ones aren't that depending from succes.