LCDs have won the format war.
So just because a product is more popular, doesn't always make it better. Honda Civic, Honda Accord, Toyota Camry and Toyota Corolla have better reliability, less electronic problems, better fuel economy, and better resale values and probably outsell the BMW M3 or Mercedes Benz C63 AMG by 1000:1. This means by the logic of "the most popular product is the best", they are all > BMW M3 or C63 AMG, which is of course non-sense. If Justin Bieber gets voted as the artist of the year at AMAs, we can also conclude that he is the best new vocal artist?
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Patrick, I am not sure why you think Plasma looks worse in the store. It may be because all the LCDs/LEDs have their contrast turned way up, backlighting to 100% to create warmer/brighter colours that a lot of consumers prefer. However, LCDs simply don't have the same black levels or response times. Generally speaking, for movies and sports, LCD simply doesn't compare. I think most consumers have been mislead by marketing to believe that LCD is somehow superior. Given the higher price premium of
LED LCD TVs, the stores that sell LCDs actually
benefit more if you purchase an LCD or an LED over a Plasma. So why they want to recommend you a cheaper TV over a more expensive TV?
However, if you go into a knowledgeable/non-biased shop that sells TVs, you will almost never be recommended an LCD or LED over Plasma.