Costco’s surprise big seller—1-ounce gold bars— are actually ‘one of the worst things that you can ever own,’ critic says

Costco’s surprise big seller—1-ounce gold bars— are actually ‘one of the worst things that you can ever own,’ critic says

Looking for something to add to your Costco cart along with the 30 rolls of toilet paper? How about a bar of gold?

While not a typical outlet for the sale of precious metals, the members-only warehouse chain has seen its 1-ounce gold b…