They really do need to sort this issue. I took 3 months out and watermills went from 2-4k up to 40k plus ! yeah its ok if you have 3-4 gold towers, but again the time will come when gold coins will be pointless. A currency shift will take place, & a rare high end resource will become the new currency, maybe saltpeter or titanium bars. personally, i think granite is leading the charge atm, maybe grout will after that.