First off you don't have to be so defensive about Plasma. Makes you look like a Zealot. However I have to disagree about pricing. A BMW and a KIA are both cars. A BMW costs a lot more for the same functionality a KIA provides. People who prefer the perception of 'higher quality' will buy the BMW regardless that it costs twice as much. Neither company is hurting for profits. I believe it's the same with Audio gear and TVs too. If Plasma really is the high end product then it should be sustainable at a high end price.
Are you seriously comparing a BMW to a KIA ?!?! Have you ever driven a BMW ? I would seriously doubt it. Where to begin, well the beginning I suppose. German auto workers are paid much better than Korean auto workers. The engineering is VASTLY superior, the materials are much better (real leather, real wood veneers, soft-touch plastics, real metal inserts just off the top of my head). The performance is night and day, not just acceleration and top speed but lateral g's in cornering, braking distance. Of course there is some overpayment for the prestige, its not a straight value for value proposition but in 8 years time, that KIA will be worth next to nothing, the BMW will retain a significantly greater share of its initial cost.
You have absolutely ZERO credibility with that argument. Your logic is entirely why crap-ass tv's sell in the numbers they do as opposed to the quality ones. If you can't wrap your head around the fact that uneducated consumers don't care about quality and go for whatever looks brightest on a showroom floor, or is pushed by the salesguy, or is cheaper then trying to explain those things to you will be incomprehensible. Videophiles almost unanimously prefer plasma, but I guess you know something 99% of them don't.