The billion dollar question of whether of not Wal-Mart's (WMT +0.5%) Sam's Club can ever...

|About: Wal-Mart Stores, Inc. (WMT)|By:, SA News Editor

The billion dollar question of whether of not Wal-Mart's (WMT +0.5%) Sam's Club can ever overtake Costco (COST +1.7%) might come down to if enough incentives exist to draw consumers away from the clicking Costco model. New brands, rebates, and the lure of Apple products are a nice start - but the ace-in-the-hole could be Sam's grocery advantage, fresher and fuller products, at the 616 stores it operates. (Annual sales breakdown: $97B in sales for Costco vs. $53.8B for Sam's)