All you are doing is financing the phone through their little crappy bank over in ca. you pay the taxes because technically you purchased the phone. All apple is doing is saying, we'll continue to finance the new phone if you give us the old one back, we'll give you the " credit " towards the new phone, thus, constantly making money. However, they did it this way so they could collect on sales volume guys. The more phones they basically " lease " which, i call it that because that's what it is, glorified leasing, so the more phones they sell through this product, the more " sales " and revenue they can claim. Remember, you're not financing the phone through apple, so apple sold you the phone, and gets to count the FULL phones revenue , even though you'll never pay it off. it's ingenious, and i pity the fools that fell for it.