I wouldn't use my Amiga, ST, ZX Spectrum or Mega drive on anything other than my CRT. They were designed for that pixel blur and playing on a modern TV is just not the same. I hadn't realised the difference it made until i tried it and now I can never go back to using an LCD for any of my 80s/90s devices.

However, beyond that somewhat niche use, CRTs are otherwise entirely pointless and basically a worse display experience in every concievable way when your source is anything produced after the advent of HDMI/Display Port.