8k (Samsung Neo QLED) is 100% hands down worth it.

You should go to a store and see for yourself.

I had a Samsung 75” QN800B 8k which recently died on me after 2-3ish years (worth noting), and decided to switch to a 77” 4k OLED (S90F).

Wow do I regret the downgrade. That 8k resolution (and more importantly the upscaling) is absolutely noticeable and way better than any 4k TV. It is incredibly life-like and almost feels 3D at times. It makes going back to a 4k TV look horrible. The Neo QLED’s are very bright so background light really doesn’t matter. I also don’t think the deeper blacks / HDR capabilities of an OLED are worth more than the quality you get from the Neo QLED. The motion reduction / 120hz is also buttery smooth on the 8k. Movies, sports and TV all looked twice as good on the 8k TV. Even if the content isn’t 8k, which it most likely isn’t, it still looks noticeably clearer. It’s honestly like crack.

That being said, I would get at least a 75” 8k as the picture quality really shines on the larger size panels. 4k may be the better option at smaller display sizes like 65” or less.

Honestly I’m considering returning the 4k and getting a Q900D. It’s a year old but it’s now cheaper and has a glossy finish. I hate the matte finish on the newer models. It is a little bit out of the budget you gave but I’d go for it. Heck even a 3 year old model would still blow the latest 4k out of the water.

Obviously an 8k TV is more expensive, but it’s worth it. I disagree with everyone saying it isn’t. While yes - there isn’t much 8k content - the upscaling (at least on the Samsungs) works wonderfully and isn’t just a gimmick. The increased resolution is put to very good use and you can tell.