One of my customers bought a refurbished 27" iMac in April 2014. Just left it at the Genius bar, getting error about USB ports using too much power, their USB keyboard didn't work. I'm fairly sure they're going to come back and say it needs a new logic board for $580 installed. Ouch. When I told my customer about this she immediately pointed out that she bought it refurbished. I told her I've had my MacBook Air for 5 years without a hint of trouble and it was a refurb. One other person I know had two separate issues with a MacBook Pro 13". One time I discovered that one of the two RAM slots was bad. The machine didn't work right with both RAM cards installed. If I left one empty it was fine. Later on it came back and this time the hard drive cable was bad. Swapping the cable fixed it. That person was asking about another computer for a different child about to go off to college. I mentioned she might consider a refurbished Mac. She pointed out that the MacBook Pro 13" was refurbished. As I mentioned I've had good luck with refurbished products from Apple and other big name manufacturers. But now I'm starting to wonder. What's your take on the subject?