Have you ever filled out a mail-in rebate form? I think you need to be a lawyer to fill out some of them. According to the Washington Post, 15% of mail-in rebates are never turned in and of the ones that get submitted, I am sure that a good number get rejected for one reason or another. After you successfully jump through all of their hoops, it still takes them 10-12 weeks to get you your rebate. They make money holding your money, albeit not much on your $50 for 3 months with current interest rates but when they are holding 3,000 peoples $50 for 3 months, it can start to add up. You can find all sorts of places on the internet to get things "free" after rebate. Many sights are devoted to such things and they all make money or they wouldn't be around any more.