Walmart is fine...if you want popular "last years" electronics. Fry's is in extremely limited markets. Speaking of Walmart, if BBY goes belly up, like you say, why wont Walmart do likewise? Remember, the naysayers say that BBY is obsolete, that there is no need for brick and mortar stores. Walmart, like BBY has an online department. Amazon "same day" is not the same thing as "now". (By the way, BBY's online was up 10%. People can order online and pick it up at the store, and not wait for the unreliable mailman, and save postage)
Finally, Amazon has been giving its electronics away, with too low of margins (zero). They cant keep that up, and when they do raise prices, they will be in line with BBY.
BBY is not going away. They are the last major electronics retailer who specializes in electronics. Walmart, Target, Costco have too small of a selection of electronics.
Dont listen to the "chicken little's"..buy Best buy.