Costco adds platinum bars to its precious metals lineup

Costco continues to chip away at the gold mine that is the precious metals market. The wholesaler is adding Swiss-made platinum bars to its selection.Costco on Wednesday announced the 1-ounce platinum bars, on sale for $1,089.99 on its website alongside its now-famed gold bars and silver coins. The bars are only sold online, and cannot be delivered to Louisiana, Nevada or Puerto Rico, the company said. Interested buyers will also need a Costco membership, which costs between $65 or $130 a year.It's no surpr ...