Best Buy is the largest consumer electronics retailer in the United States with fiscal 2018 sales over $42 billion. The company competes aggressively on price with rivals, such as Costco Wholesale, Sams Club, Walmart, and Target, but is also known by consumers for its first-rate customer service. Best Buy customers have commented that the retailers sales staff is exceptionally knowledgeable about products and can direct them to the exact location of difficult to find items. Best Buy customers also appreciate that demonstration models of PC monitors, digital media players, and other electronics are fully powered and ready for in-store use. Best Buys Geek Squad tech support and installation services are additional customer service features valued by many customers. Discuss.