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Why do stores and manufacturers use mail in rebates? A scam, or is there a way to use them effectively?
Not so much a scam, if you fill the required paperwork and actually take time to mail it in assuming it's done correctly; you will get your money. That being said, having a mail-in rebate program is usually a win-win for the seller. While they may have to pay a small fee to a third party who handles the rebate almost always this influences a potential buyer to choose a specific product over the alternative. The seller knows very well that very few people will actually go through with it. And yes, they do often make the process needlessly complicated and long as a deterrent.  Plus, let's be real, no one likes sending out physical letters anymore. From a marketing standpoint the mail-in rebate is a brilliant idea. However, it's usually more of an annoyance for the consumer.