So I made a thread here a few days ago regarding some minor cosmetic gripes I had with my laptop, and I swapped the unit today at the store (taking advantage of Apple's generous 14 day replacement policy) with generally good results, but it did make me wonder, when they replace these models, do they give refurb/repaired models or new ones? I would have assumed new, and they essentially handed me the same exact same sealed box as last time, but the contents seemed dirtier than before, and the computer has a very small nick on the front that seems characteristic of previous use. I noticed complaints here from users who did many swaps and still had odd little quality issues, so it does make me wonder. Either way, I'm very glad to have a good working computer, but I am curious.