Your opinion is just that, your opinion, but how is FaceID a gimmick? It will change everything about secure authentication the same way TouchID did. It’s called progression. Every hands on video I’ve seen it is just as fast and IMO more convenient. The lock screen already offered two stages as of iOS 10. Locked and unlocked/ready to go to the home screen. For the reason of being able to actually view and respond to notifications without accidentally zipping past them directly into your home screen. It even inevertly brings back a feature many wished had never left. Which is “Swipe To Unlock”. Which will act as if your don’t even have any passcode or authentication active on the device. Because the moment you look at the screen it will unlock and be ready to swipe to home screen, seamlessly.
The industry and consumers demand more and more each year from companies to put in the devices. It’s a damned if they do damn if they don’t situation.
So an iPhone 8 is what you want then? You’re in luck, they offer pre orders for that currently and it will be available in 5 days.