Plastic isn't shatter-proof, either, especially not if it's sturdy enough and thin enough to be considered a replacement for gorilla glass.
Even if plastic were shatter-proof, I'd much rather have a display that's clear and breakable than one that's unbreakable but scratched all to hell. I've never had a pair of glasses (high-end plastic lenses) that didn't get noticeably scratched within a couple of years, and they get a lot less abuse than my phone.
Even if plastic were shatter-proof, I'd much rather have a display that's clear and breakable than one that's unbreakable but scratched all to hell. I've never had a pair of glasses (high-end plastic lenses) that didn't get noticeably scratched within a couple of years, and they get a lot less abuse than my phone.