Hello everybody, This weekend I'm gonna buy a 15-inch rMBP. Since I don't live in the States, and hence don't have access to refurbished macs, my only option is to buy used gear. I've found 2 used late 2013 rMBPs on sale (A and B). I would like to ask your opinion on what would be the best deal according to these facts: A: –6 months of use (79 battery cycles) –In very good conditions (tested personally), save for the magsafe socket, which is worn-down. –Downside is just 6 months of warranty left Price: 1,749 (may be able to get a minor discount from that, 85 at most) B: –2 months of use (cycles unknown) –Comes with receipt –Haven't checked it personally, though it comes recommended by a technician I trust. –10 months of warranty left Price: 1,822. Which one would you choose? Also, should I expect to be able to eventually upgrade the flash drive (OWC still hasn't released drives for this model)? Thank you!