Costco has started selling $2,000 gold bars, and they’re flying off the shelves. The company sold more than $100 million worth of gold bars last quarter, suggesting that Costco customers are buying up about as many 24-karat bars as they can afford (with their membership discount, of course). The question now is why they’re buying up so much gold while shopping for groceries and having lunch in the food court. Many believe that more people are investing in gold since it is considered a “safe haven,” or a store-of-value investment that will hold its worth during these turbulent times around the world.