CRTs are definitely much better than OLED or LCD in one major aspect: Motion clarity. OLED and LCD are sample-and-hold screens, meaning they will display a frame for the entirety of a frame time, like 1/60th of a second at 60 FPS. A CRT displays frames just for a fraction of the frame time (the rest of the time they are dark), which prevents perceptible blur when our eyes track moving objects, which they do all the time in order to prevent blur. More details here:
As a user of a crt pc monitor and a 240hz oled, the motion clarity of the oled is pretty darn close now. I’d bet 480hz is the point where the smoothness of modern panels finally catches up to the crts.
Of course the question is how to leverage those monitors. Either games have to render 480 frames per second (which is impossible on average hardware in most cases other than Subpixel Snake), or the monitor just displays 7 black frames after every rendered frame, which would cut down the games to 60 (rendered) frames per second. But the latter would of course greatly reduce the maximum screen brightness to 1/8, possibly below CRT level, because OLEDs aren't very bright in the first place.
https://news.ycombinator.com/item?id=42604613