Going back in time 10 years to scratched up screens with dust trapped underneath
Count me out, I'll stick with the glass screens that don't scratch and take the risk of it shattering (which has never happened to me since I'm not clumsy) rather than going back to plastic and dealing with the inevitable scratches and the fact that screens that flex inevitably lead to dust trapped underneath the screen. It didn't matter how careful I was about never having anything else in the pocket I kept my phone in, after a week it would start showing visible scratches. Maybe pocket lint is higher on the Mohs scale than I would have guessed :)
It would be nice to have the 'perfect' screen, but unfortunately materials science won't let that happen. You can't have something that is flexible, won't dent, is resistant to shattering and is hard enough to resist scratching from common items made of metal (keys, change etc.)
Curved screens are simply a gimmick, they'll not catch on.