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    Costco Craze Inside the Warehouse Giant - CNBC Original 2012 - Full "Incredible" Docu

    Correspondent Carl Quintanilla shows how Costco has grown to 600 stores, attracting loyal and affluent customers. They return repeatedly for the treasure-hunt thrill of constantly changing inventory, including diamond rings, steaks, wedding dresses and caskets. This CNBC Original documentary also explores a "Costco Effect," the routine tendency of its members to succumb to the store's discount-chic allure and spend more than they expect, often buying more than they need.

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