Costco really treats the customer right when it comes to returns. Best Buy and other retailers with a restrictive return policy need to take notice. Costco has no time limit for the return of general merchandise. If you're not happy or it fails just return it for a full refund. Their return policy on electronics (TV, camera, printer etc) is a very liberal 90 days.
Four months ago I purchased a heavy duty shop work bench from them for $399.00. They just put it on sale for $299.00. I went to customer service with the receipt and asked for a price reduction. Not a problem. My AMEX card was immediately credited with a $100.00 refund. At Costco you can shop with confidence knowing that you are getting the best price with a no hassle return policy.