Costco Wholesale Corp. has found success in selling gold bars, a move that some believe is an investment and a hedge against societal collapse. The warehouse club has been capitalizing on customer demand through its aggressive pricing and high level of customer trust. Gold bars have also helped Costco drive revenue in other ways. However, legendary investor Warren Buffett has been consistently negative on buying gold, arguing that owning stocks makes more sense than owning stocks. Despite this, Costco shares new price drops and hikes along with gas news.