I don't like this kind of abusing the system. Maybe I'm naive (or stupid), but I wouldn't want someone to cheat me, so I won't do that to Amazon, even though they are an evil multinational corporation that would kick my dog and punch my mother just to make me cry. Especially when said evil corporation has one of the best customer support services I've ever seen in my life, and are quick to offer me refunds whenever a shipment is late (this was another opportunity I had to screw them over, because they had offered me a full refund if my Scott Pilgrim comics didn't arrive in a month's time from my e-mail complaint to CS. As they came the following week, I didn't ask them for it, but they refunded me the shipment charges anyway as soon as I first contacted them, as an apology -even though I never asked for it). So yeah, I don't condone this kind of practices in any case, but I think it's even worse when it's done against a company that almost always benefits the customer.
But whatever, I'm no one to judge. I'm very happy with the deals I already got legitimately.