That's too bad but we all knew it was coming. LED's are built for the masses; those that embrace MP3's and IPODs.
Light weight, cheap and convenient is what its all about with todays consumer.
I was an early adopter of Plasma and had a Pioneer (best picture I ever saw). Then when they exited the market I bought the next best thing available, a Panny Plasma and I use it as my primary HT display. I also have a Panny LED for everyday watching in the living room and there is no comparison - the Plasma is the superior set in every way.
But superior doesn't necessarily equate to what's popular in our culture. Yes, RIP Panny Plasma and Plasma technology in general.