+1 resource renewal is a huge pain for me.

You may create a poll on the Suggestions forum about increasing the reserve of Silver.

Different games might produce different outcomes. But if the majority of people have the same problem, we will increase the reserve quantity of silver mines.

I succeed to own 70% of total market for silver watch. But my silver mine empty too quickly. it make no sense to have to open a new mine every year. I have no time to amortize the cost of opening mine on only 1 year. The cost for a mine should remain the same but the reserve of mineral should be at least 3 to 5 time more important to be realistic.

Daniel