OK. I've never scratched my display as it is, but perhaps I'm in the minority. The display looks as good today as it did when I opened it 2.5 years ago, and I use it all the time. I guess what I'm saying is, for me, it ain't broke, so fixing it doesn't do much for me. *shrug*
Some people take better care if their phones than others though, I've seen way too many shattered ip's as of late.