i almost jumped on the ultrawide bandwagon, but i took a look at them at fry's and they weren't big enough for me, even the 34" ones. wide enough for sure but i like more vertical screen space. i'm hoping they'll release a 40" ultrawide at some point.
on a side note, you could buy 40" 4k IPS monitors on amazon for awhile now. my friend has one mounted to the wall in front of his desk and it's really a bit too big for desktop gaming. 43 is excessive i feel, unless you're planning on sitting further back.