When there is no food in the grocery store, who are you going to trade your shiny metal with? You exchange what people consider valuable NOW for the necessities of life that will keep over the long term (food, fuel). What is it about you that you're too stupid to understand that having what you need to live beats having SHINY METAL that you can trade for what you need to live? Here's a protip: when people are starving, those with food aren't going to give one fuck about your silver.