I've never had a problem with a rebate. I've found that, as long as the proper information is submitted during the time period in which the rebate is valid, most consumers will not have a problem.

As for hoping that the consumer will forget to send the rebate form, that may be true but it does not constitute deception. Most businesses hope you will forget ads, coupons and other promotions that will result in your paying less for the item. Fast food restaurants hope you will buy that dirt-cheap sandwich and make up for the sale by purchasing french fries and a drink. They're in the business to make as much money as possible. That doesn't make what they hope will happen an example of misleading advertisement.