GameZone: "Price-change refunds are great, aren’t they? You pick up a new something ahead of the holidays, the price on it drops a few days later and, as long as your purchase is still within the return period, you can usually collect the difference. This makes people feel confident buying early, knowing that their money won’t be wasted. It’s a nice bit of buyer protection to lean on in sale season, a time of rapidly changing prices. It’s also a practice Bungie should learn to implement in Destiny."