Hi, I'm looking into buying a refurbished MacBook Air and I was wondering if anyone has heard anything about cowboom.com or bought from them.The site is a subsidy of Best Buy that sells used, refurb, and open boxed products at discounted prices. I was curious because their prices seem to be lower than Apple's refurb store. If anyone has tried them out, do you know if their refurbs are refurbished by Apple? This is the first time I've bought anything refurbished and I'd hate to get anything sub-par. Thanks!