I have recently been looking at refurbished monitors from Azatek, in an effort to replace my 22" NEC monitor which got screwed up during my recent move. They have a nice (albeit limited) selection of Grade-A 21-24" monitors. I'm currently looking at the NEC FE2111SB 22" model, which they list in Not Exactly New condition. What that means remains to be seen, but at only $289, it doesn't look like a bad deal at all. I hope to order the monitor today: with any luck, I'll have it up and running by this time next week.
It's a shame that CRT monitors are going the way of the dinosaur. I'm surprised that no company has stepped up to fill the niche market of those who prefer the older CRT technology. You would think that there is a fair amount of money to be made by selling to enthusiasts, but apparently that's not the case.
Update: I've ordered the monitor, at a final price of $337.80 ($289 + $48.80 in shipping costs). Not bad for a 22" CRT!