Is it worth buying refurbished 2011 MBPs, from Apple or from third party resellers? I read a few pages of the Macrumors merged refurb MBP thread, and I'm seeing nothing but praise for the refurb machines. The MBPs i saw on apple are up to 10% off, but what's the catch? I'm buying Applecare anyways, so any problems it might have can be fixed, but I'm worried about unfixable problems (not that i can think of any). Has anyone faced any complications/problems with their refurbs?