Billionaires Are Selling Costco. These 2 Retail Stocks Are Better Buys.

Costco's looking expensive. Consider these two retail stocks instead.Costco Wholesale (COST -1.75%) has been one of the best-performing stocks in the retail sector.Shares of the membership-based warehouse chain have jumped more than 600% over the last decade, and the company continues to expand both through new stores in the U.S., and by growing same-store sales and expanding its e-commerce business.However, despite that success, there's a good argument that Costco is now overvalued. The stock trades at a p ...