That expansion rate falls significantly after gasoline price spikes are accounted for, but the retailer's 8% adjusted growth still translates into market-share gains and rising traffic in a competitive industry. At the same time, investors could see faster earnings growth ahead as BJ's collects higher membership fees from shoppers increasingly looking for deals in this inflationary environment. BJ's larger rival Costco Wholesale benefits from these same trends and in some ways is positioned even better to capitalize on today's consumer spending environment.