Yeah, but windows machines have Mach 5 radical edge with the quadrophonic Blaupunkt. It blows the Quartz Extreme away.
Yeah, well, the Mac's volume control goes up to 11!
(waiting for who catches the reference first)
But seriously, Quarts Extreme may be a stupid marketing name, but the underlying technology is awesome. Microsoft is still trying to duplicate it in an operating system with an unknown release date a couple of years away. Quarts Extreme is here, now, and it works.