I'm still not convinced the Wii could do 1:1 sword control that's actually fun for more than five minutes. I mean, it wasn't exactly all THAT accurate with similar movements in Wii Sports.
Have you played the new Metroid? It is incredibly accurate. I usually think of Wii Sports as a tech demo to show the developers some things they can do -- it just happens a lot of people seem to love playing it.
"... and so I close, realizing that perhaps the ending has not yet been written."