CRTs worked quite well, and basically there was just one type.
And yet, back in the day when we were all using CRT's, the question, "which monitor should I get for editing" generated the same kinds of "top of the line, thousand dollar+" responses that it does today.
Many held on to their CRTs as long as they could.
Well, why not, when they worked just fine?
CRTs use more power and take up a lot more desk space than the displays used today.
And? What does that have to do with display QUALITY and whether or not we can get the job done on sub-thousand dollar monitors?
The advent of TFT-LCD screens took some time to develop and there are several different display panel technologies.
Again, WHAT does that have to do with whether or not we can get the job done with sub-thousand dollar monitors?
You can frame a house with a 16 oz, smooth faced, finish hammer, but the work goes a lot faster and the house frame is stronger if you use a 32 oz, knurled face, framing hammer.
Well, there's some good old fashioned BS, right there. Given the same wood and the same nail driven to the same depth in that wood, how is it that one method of driving it would render it "stronger" than the other? Explain the physics of that one to me.
And since we're talking about editing, explain to me how your analogy of it going faster applies. You're actually going to pretend that by using an expensive TFT LCD monitor, one can edit faster than they can on a non-TFT LCD monitor? Explain the physics behind that one too.
Bottom line: I'm not framing houses here. I'm editing photos for print and web.
Over the years, I've edited with a bunch of different monitors, calibrated with pucks, and I haven't seen a clear difference in output to either print or web, to be quite honest about it. As long as it's calibrated, the cheaper monitors have worked just as well for me as the more expensive ones. My prints come out as expected with no surprises in color or contrast, and so do my web images. When I view my web images on others' computers, on tablets, on smart phones, I get just what I would expect, given the fact that few people out there calibrate their monitors, so there are going to be color and contrast variations. But that's true no matter WHAT monitor it was edited on, no matter HOW GOOD or how expensive that monitor is.
My experience with this over the years tells me that buying, using and recommending the top of the line thousand dollar+ monitors over calibrated cheaper ones is more about gear snobbery and BS than actual usefulness to the end user.
I welcome actual evidence that there's a real difference that's worth the money.