Amazon offers two ways to purchase its Fire tablets: at full price, with no restrictions, and at a discount, with “special offers.” That means personalized ads appear on the lock screen. If you don’t mind seeing an ad every time you unlock your Fire tablet, this can be a great way to save money on your purchase, but if you consider ads a hassle, it might be worth paying full price. If you buy a fire tablet with “special offers,” you can always change your mind later and pay an upgrade fee to have the ads removed.