wow I guess this comment is super late, but plasma is absoultely the way to go if you want the following:
- better performance in a room with a lot of natural light, because it's brighter. I hate looking at LCD's compared to my plasma, they look so dull and faded looking unless you're able to control the ambient light.
- far better viewing angles, good for group console gaming (ie wii)

BUT... it does use a lot more power. Still, the power difference is spread out in your bills so it's not an immediate hit to your wallet.