Anyone buy from them ($244 for my 15" MBP) during the 1st year ? I bought my base MBP 15" last year at Best Buy for $1529 (Great Deal). Thinking of adding Applecare from BHPhoto as they are the cheapest. Went on the site and it asks for your SN. Is that a legit way to buy ? Are the 2 years just instantly added on ? TIA.