Well, there's a huge difference between a 1084, and an expensive Trinitron/Diamondtron or Sony broadcast CRT. For 15kHz gaming, there's simply no comparison against an LCD. The contrast, resolution scaling, lack of motion blur and lag, etc, is all pretty easily noticeable.
For modern gaming/PC/movies, I'll take a good LCD any day. I can still see the blur, but the better monitors (using an Eizo Foris 2332 here) are definitely "good enough" for gaming. Black levels still aren't so hot, but even so, there's no way I'd want a CRT for my PC. :-)