Curved monitors might be more of a personal preference. There's some that argue that it helps with peripheral vision when you have a larger monitor, or it accounts for color/light correction when viewing the sides at an angle, or it helps with eye strain, or it's more immersive. The curve on my ultrawide is very subtle (I can view it like a TV from far and not notice the curve) but I don't think I would be lost if I didn't have the curve. Although mine is only 29". I could see the need for using a curved screen on a 34" ultrawide or bigger, just because of ridiculously wide they are, since it's like having a 2 monitor setup in one monitor. And in a 2 monitor setup, you'll most likely angle the far sides towards you.