I would absolutely love the touchbar ... as long as it were in addition to the regular keyboard, instead of a replacement for that top row of keys. Put it above the keyboard and keep the ESC and function keys, and I think it would be great.
It is useful in some apps although I wouldn't have gone out of my way to pay extra for it. Having Touch ID on a corporate laptop with strict requirements to change passwords often is amazing though.
I'm in the same boat, I really like touchid. I have CAPS LOCK mapped to ESC and have rarely if ever use anything but the function keys on the touchbar. I wanted to like it and use it, but it just doesn't work well for me.