A guy on craigslist said he works for Apple and I verified the serial # and it's good, that he just bought this about a month ago and never opened it. I am going to look at it tonight and probably buy it. But it's sealed. $650. It's still got full Apple Care for a year left. I am going to hook this up to my PC (since it's a mini-dp model) once I get an adapter for my GTX 680, but I can use it with my MBP for a few days to try it out. Should I be worried about anything? He said we can open up the box and check it out if I want if I am serious. I told him I am. 
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