For an extra $6 per month or $0.20 per day I am getting an upgraded screen, upgraded processor, better camera, 3D facial recognition, new design, wireless charging, and probably a few more things I’m not aware of or thinking of. To me, that’s worth it. For my main electronic device that is with me at all times and that I use everyday, I have no issue paying an extra $0.20 per day. Yes, nothing is perfect when it comes to security, but I am confident in Apple’s ability to implement Face ID. People had the same concerns with Touch ID and now people can’t live without it. My hope is that the face scanning is unnoticeable to the end user while providing a constant layer of security. I think Touch ID on the back of the device would be a step backward in useability while Face ID could be a better solution to biometric security.