We heard about this during the news avalanche that was CES early last month, but today Best Buy has started making its new Buy Back Program official in emails sent out to valued Reward Zone customers. The gist of the scheme is that Best Buy will offer you set "Buy Back" prices for goods you purchase from its stores, advertising it as a reassurance that your electronics won't depreciate too much during your ownership. The leaked info we saw in January showed that you'll have to pay an extra fee at the point of purchase to enroll into the Program and Best Buy's highest re-pu