No, they aren't. Scauting, personel and seats cost the same in every league.
Maybe salaries should be higher but it isn't neccesary.
but at least the salarys are the biggest factor in my expenses, and if you choose betwen investing in promotion or building arena it is more then likely that the salrys rise ;)
Please note, that in this way manager gains one extra season in higher division and he can always be relegated in next season (he can even exploit this season to tank)
if he promotes, and then demotes ... First his incomes ain't so much higher to the top team of the lower division, and when he couldn't use it he will gain much less through the demotion punishment of the fans the season when he have the extra seats, while maybe the other team can make a serious try to sty in the above league already.
No, because incomes in lower division are smaller. And therefore You need more weeks to retrieve invested money in lower division, whilst in higher division You can increase arena faster.
You counted only money used to increase arena. You should add money gained thanks playing in higher division. This extra money gained thanks playing in higher division is higher than money gained thanks higher arena in lower division.
this also depends on your existing arena, if you forget about the few extra cash through tv who maybe matters from 1 to 2. And if you had high prices already, the investment comes back quite fast and can alsu used to increase the future income again.
Also investing in direction of a promotion, always have the risk of failing while, arena income is much easier to plan since fewer things may run wrong. Those risk had to be calculated also in the balance, which econic step would be better at some point, because then you don't even had the higher income.