Just bought a sealed one ... CHECK IT FIRST!
Got it off Craigslist. Paid $590 but hey, I was late with this.
And yes, the box on the sticker AND the laptop both say i3, but when u go to System Information or My Computer>>>Properties, i5.
I'm about to throw a few programs by weeks end, and test the speed and Intel GMA and test the HD on it to see if the the matches the new intel, which Apple should have soon at price 5X higher.