I just got my refurbished MacBook Pro Unibody, current model, 13.3". I ordered the low end, 160 GB HD, 2.26 GHz, 2 GB RAM, and today when I got it and booted up, after a while I noticed it was performing, very, well. So I checked About This Mac and it said "4 GB DDR3." I immediately checked the casing for scratches/dents, as I had heard that Apple sometimes would bump the RAM to apologize for any blemishes. Well, there are absolutely no blemishes. And then later I see that I have 275 GB available space, and that just blew my mind. Any theories as to how this happened?