Boomhower, not to dispute your TV being good, but I think that shows that you almost can't go wrong. There's several quite good TVs that unless you're someone who drives themselves crazy over did I get the right one (which you'll quickly have to deal with newer models and the like so you'll do that regardless), you'll be quite happy. And then in a few years you can replace it with something newer and better.
Personally for me, it would really depend. OP you did mention the room is fairly small, and I think that's where OLED will shine is in closer up view where you can more readily see the fine details in color gradient (like subtle shade of objects changing depending on the light source in the scene). But TVs in general you're still quite far away so not sure it'd be worth it, and so far we don't know how well these panels will hold up over a few years even.
If you tend to keep your TVs for ~5 years or more, I'd pick neither of these and select a mid-range 4K model, even if sacrificing a bit of size to do it. Especially at 8 ft away.
That's not a terrible idea, especially since there's issues with HDR standards (which are probably more important than the resolution improvement). There's some very solid and surprisingly cheap LED backlit LCD TVs. Or see if there's a decent price on a large 1080p plasma on your local Craigslist/marketplace, and then when prices have fallen and 4K content has increased, and HDR stuff gets sorted out, and then buy the biggest OLED or competitive tech you can.
I would hold out until you can get an HDR capable 65" 4K OLED for whatever your budget is. There is absolutely nothing else worth buying today unless you'll be able to buy again within a year or two. HDR is the future, and HDR on any form of LCD is nearly pointless in comparison to OLED.
Viper GTS
I wouldn't say that. Sony's full array LED backlit LCDs (can't recall the model range, but go to just about any site that tests and you'll quickly find them) seem to be consistently rated right in line with the LG OLEDs, while being pretty substantially cheaper for a given size. I believe the 75" size was going for cheaper than the 65" LG OLEDs for instance. They'll outdo OLED in brightness as well (personally I don't care about that as much), although that's more because they're artificially limiting the sustained brightness of the OLEDs in order to try to boost their longevity than that OLEDs can't get plenty bright. I've seen varying reports on how troublesome the autodimming on OLEDs are.
I like a bright display. The forced ABL in OLED TVs ruins it for me. I had one for a week last year. Returned it because of this.
That seems to be a very subjective thing. I've seen a lot of people that didn't have an issue with that, but I know it could bother some people for sure.
You'll be sad when that OLED burns in within the first month. I'm just saying...
From what I've gathered is, it is image retention. Not saying burn-in is impossible (there are LCDs that suffer burn-in after all), but you might have issues with image retention. Unless you're sticking to things with tickers, taskbars, or consistent graphics (game HUDs), the image retention will go away. I've seen varying reports about how serious it actually is though, so seems to be one of those things like SDE/etc where some might notice it more. Definitely has potential to be an issue like if you keep it on sports channels but like to be able to watch a movie without seeing the ticker faintly or something.