I do like the colour depth on TFT monitors, but I found that for coding TFT monitors are really bad.
They don't update fast enough so when scrolling through code looking for errors (seem to spend 90% of my life doing this) the text looks smudged. This very quickly gives you really bad eye strain.
If you do allot of coding I would stick with the old CRT monitors.
But if you still want a TFT one find a display model in a shop, open up a text file in it and have a go at scrolling through the text, if the text looks smudged when scrolling through it then don't get it. Unless you are not going to be doing much coding with it.