Talk:Profitability/@comment-60.165.176.77-20110701055237

Every time you upgrade, repair costs go up 20% and it compounds each time.

The profit also goes up ~20%, but there is no compounding.

The repair costs in this game are totally broken. The is no reason to buy many of the more expensive buildings (Luxary Cottage being a rare expception) or do much upgrading of anything other than power/employee buildings and Business Center/Bank).