While Amazon's Price Protection Policy isn't spelled out on their website, they will refund you the difference if the price of an item that you have purchased drops within 7 days of receiving the item. If this happens, you will have to contact Amazon's Customer Service department for the refund. Be advised that Amazon's Price Protection Policy is only valid on items sold and shipped through Amazon and does not apply to third party sellers.
If you don’t mind open box or used products, you should definitely check out the Amazon Warehouse page, which allows shoppers to find great deals on everything from electronics to housewares. Plus, they frequently have promotion codes for further discounts on your first purchase. Buying from third-party sellers and individuals on Amazon is another way to get huge discounts on used items, especially previous generation electronics and older books.