People are saying that, unless you really need the Touch Bar for image/video/audio works, the non-TB has better bang for the buck.
Remember that everything the Touch Bar does, you can do on the MBP screen. The bar also represents a continuous change of your field of view, in other words, continuous distraction.
I don't think the idea behind the Touch Bar really matches the concept of a keyboard. People learn to type without having to look at the keyboard for a reason.
But, as I said, the Touch Bar seems to give artists a good interface to speed up the job. Even though, everything that's being shown on the Touch Bar could be shown on the screen. Anyway, I can see some occasions where the user swipes a finger on the Touch Bar and uses the other hand to operate the mouse, which means 2 operations at the same time.
But that's it. How'd this bar be useful for the average user that surfs the web, creates documents, spreadsheets and presentations, hears musics, play some light games (that require you to keep looking at the screen), watches videos, codes etc.?
Sure, the developer may put some features to make the app/game work with the Touch Bar, but those would only be gimmicks. I really can't see anything relative to the mentioned uses that a Touch Bar could
significantly improve.
So, as many people are saying, the performance increase between the non-TB and the TB models is negligible (CPU, GPU, RAM and SSD). Unless you're an artist or really need 2 more USB-C ports, the non-TB model makes your pocket be thankful (more money for USB-C dongles?

).