Just purchased a 2017 nTB on sale, I figure with the keyboard repair program and possibly AppleCare, this machine will last me for a few years or longer.
I don’t use the TouchBar or fingerprint ID, no need to do so.
You're not alone. The latest Consumer Reports survey of laptop owners in Winter 2018 (36,919 surveyed):
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You really need to try the Touch ID. It is so fast, just touch and go! Hardly have to enter my password anymore