It gives you one phone number which when called would ring all your phones. Then you can use whatever phone depending on your activity at the moment. As a matter of fact when I get home from work, I would switch an active call from my cell phone to my home phone without missing a beat if I ever need to cut down on mobile minutes.

Since patents are good for 20 years, why not make people register domains for 20 years for the initial purchase? You can think of your domain as a "patent". Then the $250 you propose would make sense. Imagine all these squatters having to fork out $250 per registration to sit on a domain that may not be worth anything.