Since going TFT (Dell 2407 here), I've noticed I do not get as tired behind the monitor, and I've not run anything less than 100Hz on a CRT for over 6 years.
The biggest thing I miss about the CRT was CS 1.6, native 800x600, 100Hz refresh rate and vsync on. I hate gaming these days with input lag and lack of vsync or 100FPS.
The trouble is, most games now put you at a disadvantage if you do not have a widescreen due to the lower FOV, otherwise I'd go find a nice CRT just for gaming.
As a side note - how anyone has ever used a CRT at 60Hz, I cannot understand - my very first 15" monitor years ago even did 75Hz at 1024x768 - 60hz was unbearable in my ignorance then, and would be like torture these days.