I am looking at possibly getting a brand new sealed Macbook Air and save some money by getting it on eBay. I checked the sellers feedback and everything is good. What i really want to know is about the warranty and Applecare. Since it's brand new would the factory warranty start when I buy it or start whenever it was purchased from Apple from the seller? Also, can I buy Applecare for a brand new mac bought on eBay? Will they honor that? How would that work if I don't know when the original purchase date was? (even though it's still brand new, sealed)?