In my room I have a Trinitron and a pair of 1440p OLED monitors. You're right in that in a lit room the OLEDs have deeper blacks, but in a dim room the glow of the Trinitron's lit phosphors create a unique effect contrasted with the unlit ones. I might have to experiment more with the various visual filtering softwares that exist, but I think the physical properties of a CRT mean what hits your eyes is just unreplicable.