/g/, I'm willing to finally upgrade my TV to get a 4K one,

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/g/, I'm willing to finally upgrade my TV to get a 4K one, I've found that for what I can spend there are 3 valid options
The Samsung KS8000
The Sony X800E
The LG OLED

Between the first 2, basically the only difference is that the Samsung has a true 10Bit panel while the Sony has a technology that mimics 14Bit (or something like that) and possibly the Sony has a better video processing (clearer images). But I don't really know which one is truly better.

Now, I've also found for about the same price the LG, which is an OLED but of last years generation (if I stand correct). I just wanted to know if OLEDs are just a meme, if the fact that their brightness level is shit compared to LEDs is a problem (I would keep it in my bedroom) or if I should just buy the LG as OLED has better blacks and all that shit (also the LG has a 10Bit panel too). The only problem is that it's curved. Now, while I know it's a meme, it is also one of the least expensive OLEDs I found, is curve actually worse or indifferent/depends on the preference?
Thank you for helping a poor uni student not to waste money