The only part that I was wrong about is almost completely trivial, you're still wrong about the fact that Lightboost is a significant contributor to input lag on an LCD monitor, unless you're some kind of superhuman that can detect a 4ms delay (and you're not because you have a hit accuracy of 90% which is pathetic). On any LCD with Lightboost, you're already playing at 120fps where the input lag is already fast approaching CRT levels, and when LCDs get fast enough to strobe in the middle or beginning of a frame, at a lower strobe duration and faster FPS than a CRT, it won't matter.
As for whether or not a CRT is worth it? If you can easily find the right one in good condition for a reasonable price, and your primary concern is gaming, right now the answer is yes. If you care about resolution, color, eye health, aesthetics, durability, space, or the fact they weigh a ton (I had a 36'' WEGA Trinitron in my bedroom before I moved out that weighed 250 pounds) more than gaming, then no.