At work I use a desktop TFT, and I have a TFT in my laptop. TFT is great in many ways. Spare space on your desktop might be the biggest advantage. The "cool factor" is another :-). I also find TFT's to be somewhat nicer to the eyes than CRT's. However, CRT's might perform better in envireonments where the daylight shines through. And I have discovered that TFT's does not display colors completely accurate. Very light shades of gray might be seen as white for instance. I know there are TFT screens around aimed for the DTP market among others (where true colors are really important), but they are *expensive*. TFT screens also have an issue with frequent screen updates too (like in games), but the newer and more expensive TFT's are better than the older ones on this. And things improves all the time.
I have three CRT's on my desktop now. Two Dell 21" Trinitron and one Hansol 19". I think they are all great. The Dell Trinitrons has two inputs and a switch at the front to choose between the inputs, which suits me just fine.
I will definitely choose TFT's when I upgrade. By that time I'm sure the TFT's will have improved and dropped in price.