generally there's 3 other benefits, lcd's usually have less glare (though some new ones from sammy among others have a shiny screen that is worse than plasma's glass with anti-glare, etc), usually weigh less (though same situation, the lcd's, specifically larger ones and the one's with shiny screens just about the same or maybe more depending on the model), and consume less power
other facts are lcd's are easier to get a higher resolution out of, so you see models with 1080p for less than a good plasma with 1080p would cost, and also that they come in a bigger variation of sizes
if you want a 40-60" tv, plasma offers the best PQ still, but there is so many myths, plus lcd's look better in showrooms since their brightness is cranked, but take a top plasma and top lcd home and the plasma will win out in a regularly lit room (as opposed to a warehouse type setting in a store with numerous flourescent lights)
trust me they both have their own issues, which is why there isn't a clear dominator or only one HDTV type of picture right now...