I do a lot of retro gaming, with my SNES, PS1, and N64 regularly hooked up, and I've started to wonder if it's worth grabbing a CRT for these systems.

They really don't resolve well on my HDTV, with a lot of artefacts like ghosting, and noticeable input lag. I've kinda just learned to deal with it for the last 9 years or so, but recently I've started to wonder if I'd be better of "rescuing" the next decent CRT a relative goes to throw out, and giving it a new home as my retro gaming setup.

Has anyone else here shifted back to CRT for older systems, and was it worthwhile?

I considered it, but honestly just went with emulation via PC hooked up to my main screens 42" TV and 130" Epson projector both at 1080p so really I just rather chill out on the couch with a huge screen rather than spend time blowing into carts and hauling out a huge ass CRT TV to play them, realistically the last SD TV I had was a Philips 32inch which was beautiful, but at the same time, having to at a point haul it up 2 flights of stairs... then when moving out back down again, I don't think I ever want to get a CRT screen, at 35 years old my back just isn't able to take hauling that around the place to game.

edit - was a little bit sad recently when I broke out a PS2, Time Crisis 2 and a bunch of other light gun games but found out that there is no way with my current setup to get them to function correctly... (the light gun does work if pointed towards the projector but obviously then you're in the way of the image and shooting the wrong way around.)

You should be able to score a decent one for free. So, if you have the space for it, just go for it. At least for a little while to relive those old school games the way they were supposed to be played. If you get tired of having that big ass TV around, just get rid of it.