We had a plasma at home years back. Was the biggest screen in the house at 60"... until it died and no one seemed to be able to figure out if they could honor the warranty, or fix it otherwise. Took an eternity to even get an answer for why it actually did die. Now, everyone has an LED-LCD TV in their room, plus one in the kitchen, not one of them over 36".
That is probably the biggest problem we and most I knew who had plasma had and the reason for the jump to LED-LCD. Plasma is plenty attractive, but in past experience you couldn't get them fixed if something went wrong, and if nothing goes wrong you weren't likely to buy more than the one you have in the living room because you don't need another screen in the 40"+ category.
It's not about which has the better basic specs - it's which one provides the better all around experience. That means not only appreciably better visuals, but price, reliability, and function (getting it in the right size). A lot of people got burned early in the plasma experience, poisoned the water about plasma, and LED-LCD came in to be the everything for everyone option. Sound like anything else in the technology or software segment over the last 5 or 10 years?