Not sure about refurbished CPUs but refurbished phones are bullshit. Just from my experience, they don't take care of anything labeled 'refurb'. This is only from my phone experience though - had dust all over it, scratches on camera lens and front screen, some kind of weird mud/grit. This is on an Evo 4G too. I demanded a new phone and got it after warning to call the better business bureau.
haha thats what i was thinking, how would you refurbish a cpu? you're not exactly going to be switching off voltage regulators and capacitors, i saw some of those refurbs advertised right before i came here, thats funny. maybe they fixed some broken pins and called it refurb.