Dude, TVs usually have horrible latency and input lag but I agree with the general sentiment. I do not get the popularity of ultra-wide.
But I'm also not much of a fan of curved (well, I mean I am but not when it comes to LCDs
It all seems very gimmicky and I'm sure it would annoy me when doing other things than gaming which is probably 80% to 90% of the total time spent in front of the LCD.
I really hope this fad dies soon-ish and that monitor makers (re-)focus on large regular non-curved 16:9 quality LCDs.
I already own a 32" so my personal preference would be a 32", low latency IPS/PLS/PVA panel, 144Hz (or higher), G-Sync, 1440p (or maybe 2160p), USB hub. Pretty please with sugar on top.