Maybe they don't want to encourage people to tear up packaging in-store so that they can get a discount on the product. And in their mind, toys are like any other product they stock, like kitchen appliances, clothes, stationary, etc - as long as the product inside is undamaged, the packaging is just there to ship it in.... and therefore would only discount if the product itself is damaged or missing something (like they do at Kmart with their clearance basket at the back of the store). Only collectors like ourselves value the packaging as much as the product (well, a few of us do).