I'm gonna hold out until they have a 60" or larger before I make the jump.
So far, I'm really happy with my 60" Samsung 3D Plasma HDTV I currently have.
My TV room is dark, nearly totally dark, so I really don't need bright, when I watch it alone...
However, my wife likes to "see" her food/snacks while she watches TV so a brighter Plasma would be nice.