A new sighting at Sam's Club may have put the price of a Wi-Fi only Motorola Xoom much lower than its 3G counterpart. A meeting and an early floor stand show the tablet costing $539, or a dramatic $261 lower than what Verizon charges for its contract-free version. Droid-Life's sources showed that the Walmart-owned chain would give users special bundles with a silicone "Protective Gel Case."