Another category of stores sometimes included in the hypermarket category is the membership-based wholesale warehouse clubs that are popular in North America, pioneered by Fedco and today including Sam's Club, a division of Walmart; Costco, in which Carrefour owned some shares from 1985 to 1996; BJ's Wholesale Club on the East Coast; and Clubes City Club in Mexico. In Europe, Makro leads the market. However, warehouse clubs differ from hypermarkets in that they have sparse interior decor and require paid membership. In addition, warehouse clubs usually sell bigger packages and have fewer choices in each category of items.