I have a LG plasma TV from 2008 that still works great. It's not a smart TV so I don't have to worry about keeping it up to date or having it slow down. I've gotten more than my money's worth.
Plamsa panels were commonly available as 1920x1080 or 1366x768. As long as you're watching natural images (movies etc), both are really fine; native 1080 line plasmas are a better fit for computer generated imagery because they're much easier to feed at their native resolution and avoid the scaler; a lack of 4k plasma displays isn't really a big problem, 1080p is still beautiful. Plasma screens don't have support for HDR, but they do have amazing black levels.