I have seen the light, fellow OLED+PC owners.
http://www.neogaf.com/forum/showthread.php?t=1353346
At native resolution the 55B6 does not function well as a desktop monitor, too much space. As per the above thread, I set a custom resolution of 3840x1700 via Nvidia, just a tad bit above 21:9. This changes the god damn game!
You effectively get a 21:9 screen that is 50 inches. The FOV becomes MASSIVE in games, and consequently very tolerable for use on the desk as a monitor. The lower resolution, paired with a 1080 TI makes the experience so damn smooth. And I am still on a 2500k lol. Some might find it heresy that there are black bars, but bruv, the screen was too big in the first place, and in the dark, with the OLED there ain't no damn bars to see! To top it off, you get that kick ass OLED picture quality and HDR. Got this set for $1500. Compared to the upcoming 32 inch LG HDR monitor that retails for $999, seems like a damn steal. Last thing, unlike a native 21:9 screen, this shit gains inches when I revert back to 16:9.
Pretty hyped because this is the first time I tried 21:9 aspect ratio in games, and so stoked I finally found a way to make this TV work as a monitor. Fallout 4 looked nuts, Witcher 3 looked nuts... need to try BF1 and Doom. God damn!!!