price of gold in 1998 USD over abbout 30 years
The value of gold does change. It is true that in 1913 the US went to fiat currency and left the gold standard, giving us a steady inflation rate since then. However there was still inflation (and deflation) while we were still on the gold standard. Inflation/deflation will always occur in an economy whenever the sum value of that ecconomy's goods increases/decreases at a rate diffrent from that of the money supply. regardless of whether that money is gold, government backed dollars, or bad tupees.
Also i can't think of any nations (other than silly cuba, and crazy N. Korea) that wont accept US dollars, in fact the majority of nations use fiat currency.
edit: another tidbit about gold and inflation: in the 1600s when spain was looting gold from the aztecs and inca and carting it back home to europe the price of goods in spain went up 200-500%. money supply went up, but the value of goods did not. tada inflation.
Anyway. back to what's important... Dwarves!
I had another idea. It seems that the best strategy would be to cottage spam everywhere hills, grassland, whatever. This feels very un-dwarfy. My idea was to deny dwaves of building cottages completly, or limit them to only grow once to a hamlet. and instead have 'growing' mines in the same way as a cottage. ie.
t1 mine: +2 hammers
t2 mine: +2 hammers +1 coin
t3 mine: +2 hammers +3 coin
t4 mine +3 hammers +4coin
or something along those lines, the +3 hammers at the top tier might be a little too much.