I dont believe that plasma will exceed LCDs.
Sure, the pic is good when new, but I hear it degrades over time.....no?
I’ve owned one for 4 years. I don’t believe the picture is any worse.
I DO keep the brightness setting down to a normal level, though. My understanding is that many sets in the store are set to the brightest setting, which is rumored to degrade the picture over time. Don’t know if it does or not.
At the time I bought, I believe that Panasonic claimed a lifespan of 50,000 hours (before any dimming of the picture would be noticeable)
In about 30 years of normal use, but you don’t have to change out bulbs like you do on non LED LCDs.