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I've seen quite a few LCD monitors in the trash, but so far all but one has had a smashed screen. The only one without a smashed display had been plugged into the wrong power supply. I tried to follow the power supply, but eventually gave up trying to trace through the multilayer board and identify unmarked SMD components. I sold it on as is. I've seen a few LCD TVs come through the junk auction (where most of the stuff comes from people who collect it off the side of the road). One was a small 6" model from a car system. It had a broken mounting bracket and flex cable. One had a dead backlight, but appeared to be okay otherwise. One seemed to power up okay and display the blue background with OSD but I couldn't get it to display a signal. All went higher than I was willing to pay for something to play around with. I've fixed laptop LCD displays before, but they usually fail predictably (backlight or flexcable). I've changed a driver IC on an old mono display, but I doubt I could do it on a modern display.
I can think of a couple of places that where space is at a premium and picture quality isn't critical where I'd use an LCD if I found one cheap enough, but I'll stick to CRTs everywhere else.
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