Yeah it’s hard to know how amazing modern OLEDs are from Best Buy demo reels, sadly. It’s something you have to experience in a dark room at home with good content to appreciate to the fullest.
BTW I highly recommend you do some research into HDR, and color gamut. I don’t think you know just how much you’re missing in terms of HDR, color gamut, contrast ratio, etc, that comes with modern TVs. Color gamut goes way beyond sRGB. Modern HDR TVs are far, far more than just “10 bit color”, and allow an express-able color gamut and color volume far beyond sRGB. A LG C9 achieves sound 99% DCIP3 color gamut and 75% REC2020.
To make a crude example, it’s kind of like 150% sRGB coverage, over a range from perfect black to extremely bright for each pixel individually, with enough precision for smooth gradients across these colors. These TVs can display colors that your sRGB monitor is physically incapable of reproducing, and they can display pixel by pixel contrast radios that allow realistic details and specular highlight brightness levels that cannot be done on regular LCD monitors or TVs. And it all absolutely shows in the picture quality when viewing recent movies/TV that are mastered well.
P.S. Stay away from Samsung if you care about color accuracy as I do. Sony and LG and Panasonic all have excellent color accuracy, and likely will be better than any PC monitor within twice it’s price. But Samsung not only comes out of box with horrible defaults, but actually CANNOT be correctly calibrated due to always-on tone mapping. Among videophiles, it’s well known that Samsung is not the way to go. But please don’t let Samsung’s overly flashy demos turn you off to the amazing technical abilities of modern TVs in general. Just because Samsung made arguably greedy marketing-driven design choices that cheapen and destroy the artistic accuracy of the content does not mean everyone else does too. Only Samsung does this as far as I’m aware, among the top brands.
If you want color accuracy, picture quality perfection, superior color gamut, contrast, HDR, AND low latency (0.1ms response time and overall input lag on par with dedicated gaming monitors), LG OLED is THE way to go.