It would be a good capitalist way of saying;
Well, danish greatswords come from denmark, and they have run out of supply! Of course they are more expensive!
This would be an automatic min-maxer killer in the long run. Since no weapon or item is atm extremely OP in itself, I think we could try such a change. For every greatsword used every tick, the price and upkeep of it
would go up or down. A rarely used weapon would be very cheap, and a popular one very expensive, making players have to compensate by wearing less armor.
Same would work for armors and other items of course. It should be for weapons USED, not bought or in inventory though. Perhaps it should be connected to the kill or damage stats?
This would also shake up the marketplace...