Replace Pioneer 5080HD?

[quicksilver9365]

I have been thinking lately of making the jump to 1080p and replacing my Pioneer 5080HD plasma. On the used market I do not think it is worth much but thats how it is these days.
I have been happy with this TV for the past 5 years but feel with my viewing distance and tv size (8-10 feet and 50 inch) I am missing out. I have looked at the Panasonic line and hear they are stopping production of plasmas soon. Any advice on what I should do? I realize its a very subjective question....
I kind of feel if I do upgrade I would need to explore the VT or ZT line of Panasonic series and they are fairly pricey. I think this due to black levels of my Kuro that I enjoy so much. We split our viewing habits between BD's and cable tv. I also game and have an Xbox One (unopened) and a PS4 on the way.
The Panasonic ST60 has caught my eye as well.
Thanks