This is for people who play competitive games at a high level and want every advantage. The screen refreshes 480 times per second — that's smoother motion than you can actually see, but in fast shooters or MOBAs the difference between this and a regular gaming monitor feels like the game responds to you faster. Combined with OLED's instant pixel response, there's zero blur when you whip the camera around.
OLED also means perfect blacks and real HDR that makes bright explosions and UI elements pop against dark backgrounds. The colors are punchy without looking fake, and the 26.5-inch size keeps everything in your field of view during intense matches without needing to move your eyes as much.
This monitor costs what a decent used car costs. You're paying for the absolute bleeding edge — if you're not chasing rank or playing at high frame rates, the premium doesn't make sense.