[quote name='capitalist_mao']I have a PC in my living room that is running WinXP Vanilla. I see no reason to use WMC over a regular version of XP. For audio, I have Winamp. For Video, I have MPC, WMP10 and WMP6.4. For recording, I have intervideo WinDVR. Plus, i have my PS->USB converter and controller, plus an assortment of simple old-school games. The computer was a cinch to build and cost very little. It did take a little bit to setup. I reinstalled windows today (because I put a new HD in) and it must have taken me about 5 hours total. Of course, 4 of those hours are waiting for XP to download updates and running the installationg part at the beginning. The rest is just installing all the rest of the programs, drivers, moving the icons around and making it look pretty.
I'm not sure if that helps or not.[/QUOTE]
This is an option, but some people want a seemless easy to use setup. This is what MCE provides. It works just like a set-top-box with remote. No mice, no keyboard, you almost can't tell it is a normal PC.