What typical ones are you thinking about?  And are you American?  Americans are bad at math.<p>Companies selling to us know this and it&#x27;s common for them to offer a monthly contract for a device with an expected life of three years as price&#x2F;24 if they&#x27;re feeling generous, and price&#x2F;18 if they aren&#x27;t. I think the worst one I ever saw was price&#x2F;14, and people still bought it.<p>TiVo has prices closer to the worse end of that spectrum, drove me nuts.