Plasma Vs Lcd.. Whats Better?

I am not huge on tvs but I am buying a new one for my living room to hang above my mantle. I am buying a sanyo 42" either plasma for 450 or LCD for 550. Why is LCD 100 more? Is it going to last longer? Please explain simply I do not understand all this high tech stuff lol

Thanks

Suggestion:

Pros of Plasma
- Better contrast ratio, better motion tracking, better ability to render deep blacks, they are available in larger size.

Cons of Plasma
- more susceptible to burn-in but has been solved at some extend with the new TV
- more heat and power consuption
- heavier weight
For Plasma I recommend Panasonic or Samsung

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Pros of LCD
- no burn-in
- cooler running
- more functional at high altitudes
- longer display life
- less power consumption than Plasma.

Cons of LCD
- Lower contrast ratio
- rendering deep blacks compare to Plasma are not so good
- not good at tracking motion but still trying 120Hz or 240Hz refresh rates
For LCD I recommend Samsung or LG
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