Thinking about buying the upcoming release of ABC’s Once Upon A Time: The Complete Second Season on Blu-ray Disc? You might consider pre-ordering the set as Amazon is currently offering a $15 coupon. We’re not sure if the coupon will still be available once the title releases (and a release date still hasn’t been set), but the $15 coupon is hard to resist. If you’re still watching DVDs, Amazon is offering a $10 coupon. Amazon also offers a pre-order price guarantee that makes sure you pay the lowest price listed on Amazon through release date. Once Upon A Time: The Complete Second Season (List: $79.99) is currently priced at $55.99. With the coupon, it makes this a $40 purchase. Here’s a direct link to Once Upon A Time: The Complete Second Season on Blu-ray and DVD.