I just purchased a factory-sealed MBP on ebay. This is a new, not refurbished, unit. I plan to purchase the Applecare extended warranty before the regular warranty expires. This leads me to the question of when the regular warranty becomes effective. I'm not sure the seller can be considered a retailer, so I don't know if the date would be the date she purchased from Apple (or a middleman), or when I purchased from her, or when I receive it. I'm pretty sure this question has been asked before, but I wasn't able to find it in a search. So, which date is it?