If it was my laptop I would agree. I find I can just as easily use TWM, KWM, Icewm, fvwm or whatever else (though I'm admittedly not so fond of the tiling WMs), which is why I use Metacity now. For my wife, however, it's better to keep everything the same as her other machines, which is why I left it at the default.

I admit I had the wrong CD on me, but it was the CD I had, and in the end it was quicker to use it than to download and burn a different one.