The Times-Picayune confirms the long-swirling rumors: Costco is really coming to New Orleans. Read about it here. Did you know that Costco is the largest retailer of prime beef in the U.S.A.? The store will occupy a now-vacant but very accessible strip of land at Carrollton Avenue & I-10, opposite Xavier University and alongside the Palmetto Canal. Costco anticpates a mid-2013 opening date.