I bought an expensive receiver from Best Buy and it stopped working after 34 days. I took it back to the store only to be told that they only return items within the first 30 days.
They would send it back to the manufacturer for me but that I would be without my receiver and TV for about 3-4 weeks. No help, no loaner, I could buy another one if I wanted but they wouldn't do anything to solve my dilema.
Go to Costco--at least you can return items that stop working. Best buy wants you to buy their extended warrantee rather than backing the products they sell.