It would therefore be more fair to give back money only for arena builds that finished less than 20 home games ago, i.e., to teams that have not had the chance to earn back their build money yet.
ähm ... Sorry no .. This logic doesn't have anything to do with the arena think working here ... First of all you should look at prices, and the arenas who should be redoced works often below standard price ...
Secondly if youbuild 5 seats extra and sell them, you can not count ticket prices * 5 to look how much money the seats generate - no you normally balance those ticket prices that you get sold those additional 5 seat so you have taken these number and "-" the old seats * price difference. And if this sum is zero, the teams make profit, and this is a lot more then 20 games.
The example before from me, with 55 VIP lounges i making 33k, with 95 i would make 40k. Lets count:
40 * 16.000 - X * 7.000 = 0
X = 40 * 16.000/7000
X = 20
oh shit
X = 91.4 Damn you should play " the price is hot", you are master of estimation. Hey and don't forget in the last season, we only get 90% of the price, with reduce the difference to 6.300, and we have less fans which reducing it additionaly, and you will crush the faktor 5 ...
While it's improbable that these teams would spend all their money at once on the transfer market, what will certainly happen is that the teams with larger arenas will get a cash infusion which they can then use as a cushion for their bankrolls.
one question, what do you think have teams done, with the money who don't invest on the arena?
Did you suggest that every team should instantly loose 30% of their money, because else they will invest it on the transfer market and runining the prices? At BB this has to happen instantly, else the problems appears few minutes before regulation - i see many player like things like that.