This thread is hard to read, don't take most of these yahoos advice.
"Plasma does not burn in...once in awhile when u turn the TV on, you'll be able to see a logo you were watching last night for a couple of seconds before it disappears, but it's *never* perm."
While I favor Plasma technology, they can have permanent burn in. While normal TV viewers will probably never have to worry about it, I'm sure having a static image on there for two weeks will cause permanent burn in.
"They don?t last nearly as long as other types of tv's, namely, LCD rear projection, the technology had not been refined enough yet."
Bull, have you ever factored in the bulb life of an LCD projection TV. The bulbs are only rated for around 2,000 hours half lives now with a steep $300+ price per bulb. Almost all current plasmas now are rated with a half-life of 60,000 hours. Let me do the math genius. Five hours of viewing a day.
Plasma = 32 years worth of viewing with an initial cost of say $2,600 for a great HDTV
LCD Projection = 1.095 years of viewing per bulb to get 32 years worth that would use 29 bulbs at say a very generous $150 = $4,350 worth of bulbs + the initial $1,800 for the TV.
Any third grader could obviously see that and LCD projection doesn't last as long and value doesn't exist. The same could also be said about DLP. Sure while you don't have to worry about burn in with these TVs changing a bulb every 2,000 hours seems to have a definite disadvantage.
Now to the matter of plasma or an actual LCD display. Two years ago I may have said LCD hands down since Plasma technology was lacking (short life, burn in) but now it really seems to have the advantage. Picture quality is absolutely stunning on these devices, even an EDTV if money is a factor and it is only being used for casual TV viewing. As far as I know all EDTV will accept the HD signal they just won't display it in 780 or 1080 lines, for parents they probably will never see the difference. LCDs though in the small application you are speaking about may be the best idea. And the smaller the LCD screen the better they seem to look. Most ghosting problems are gone now with current models and you don't have to worry about burn in.
Sorry I can't make a definite decision for you, and I hope I don't offend anyone too much but it needed to be said. Just because the guy at Best Buy told you something it doesn't make you an expert, in fact it's probably the wrong information.