For a smaller screen, sure. But over a certain size, I think it's worthwhile. Had a 24" flat, then 24" curved (that size curved is a bit daft) but with 27" curved it's worthwhile. The curved has 10 bit panel and is more accurate too. Although I do understand there is a fair difference in price.
29" UW is too short vertically as well, it feels VERY cramped. 24" 16:9 is same height as 29" UW
https://www.overclockers.co.uk/lg-2...e-widescreen-led-monitor-black-mo-142-lg.html
Also if you have a 27" already, you are dropping down in vertical size
http://www.displaywars.com/27-inch-16x9-vs-29-inch-21x9