Which plasma are you currently using?

Here's my take since I own both LCD & Plasma 

Plasma:

+ Deep contrast, no motion blur issues, wide viewing angle
-  Burn-in (this is exaggerated old news/propaganda these days), slightly higher power consumption, glare (not really applicable to high end models), only available in 42" & above (larger screens)

LCD/LED:

+ Vivid colors, less power consumption, new LED models are very slim & sexy, available in all sizes
-  Motion blur (frame interpolation kinda solve the issue but the result made the PQ unrealistic), Bright (depending on the spectator, there have been reported cases of viewing discomfort)

One of the main reasons plasma lost out in the HDTV war due to the fact it is only available in bigger screens, while LCD has successfully captured the market share. This is purely based on economics, nothing to do with quality. Ideally, we'll all be flying Concord today if not for the price 

The other thing is, don't get carried away with all the Motion Flow XXXMhz. This is purely a sales gimmick  Even with the fastest refresh rates, motion blur is still evident.

Ultimately, the satisfaction of owning a HDTV boils down to Picture Quality.