Amazon’s quarterly revenue rose 51% year-over-year while Best Buy’s revenue remained flat. Is it any wonder Best Buy’s stock prices fell by one-third this year? What’s going on? A high percent of store visitors use Best Buy for decision-making but turn to the Internet to find best prices and make purchases. Without stores and with a government-given competitive advantage called “no sales tax,” Amazon has the lowest cost business model. Best Buy is stuck in commodity-competition quicksand, sinking steadily while customers see little difference between buying from them, Amazon or other reliable suppliers. Of course, lowest price wins. Best Buy is not alone. Most manufacturers and retailers are stuck in this situation. I saw a great solution to this dilemma while helping my husband Nick shop for running shoes at Road Runner Sports, the world’s largest on-line running and walking store with a…