Shopping at warehouse stores is a great way to keep more money in your bank account due to the great prices these types of shops offer on many goods and services. You have many different warehouse stores to choose from when you're headed out to do your shopping -- and the good news is, each of the three big names has good customer satisfaction rankings. According to a recent American Customer Satisfaction survey that asked about consumers' happiness with different supermarkets, Costco was the favorite big-box store.