LCD screens still look really artificial to me, in comparison to my plasma which has a nice natural feel to the picture and colours. Maybe it's just the way tellies are set in the shop though?
Never go by store displays, other than to judge things like jaggies along diagonals, and how black shadows are. It's really worth looking on something like AVForums for good setup details. I spent several hours in total tweaking my 40" Sony Bravia, before I was entirely happy with it. Terrific picture, five or so years on, I still really love watching it. It was an £1100 set, reduced to £899 when I bought it, mind...
I could probably get away with a 42-47", sat where I am, but 50" might
be pushing it a bit.
If anyone wants to check out a truly drool-worthy new telly, look for the new LG 55" OLED set announced at CES; mind-buggeringly thin and pretty pricey.
At the moment.