I use clamshell mode 90% of the time now so the Touch Bar would be useless for me. I think I'll go for another 2-3 years on my late-2103 rMBP.
I also use my machine with an external monitor, keyboard, and mouse, so it would also be a waste. That said, I need a new computer. As much as fragmentation is undesirable, I wish I had the choice of choosing one without a Touch Bar.