Heat, Line Bleed, APL effects ABL thus Gamma, Dithering Noise, Image Retention, Burn-In, nightmare to calibrate.
That's the price we pay for good a Contrast Ratio, wide viewing angle, and blur free motion in 60fps content (not much of it anyway).
Owning an ST60 (and loving perfect calibration) I can say: Plasma is a pain in the ass for anything but contrast ratio, not worth the positives.
Hope that cheap OLED TV's come soon and Slay the last of them.... so that we can buy a nice OLED and throw out plasmas where they belong.
Meanwhile I can tolerate mediocre (at best) Gamma, Colors, Greyscale...