 It doesn't cost an arm and a leg, but it will assume that you absolutely want it done properly because you don't want it challenged. And I know that everybody thinks, well, I'm going to be the first person to live forever, but that's highly unlikely. You should at least let your loved ones know what your wishes are. It doesn't take a lot of time and it's not expensive. And it has a priceless value if and when the time comes to have it read.