I think that walls should be less expensive to upgrade, because level 4 walls are 30000 each, then level 5 walls are 75000, then level 6 walls are 200000 to upgrade. This seems a little outrageous for prices to upgrade walls, pleasd lower prices to upgrade walls please. When you want to upgrade walls, you have to save a bunch of money to do it, thats a problem for those of us that dont like being poor.







