Personally I detest the Touchbar. I find it a gimmick for the most part although I can see it being useful for some people in a few limited situations if an app takes proper advantage of it. However, from what I've personally experienced I would avoid it. I've also seen how a Touchbar failure will prevent a Mac from booting normally (yes, an issue with the Touchbar may prevent you from even booting the Mac normally!). Apple actually removed the Touchbar from some of there laptops, but then brought it back again so obviously there are mixed feelings about it.
Consider adjusting the volume or screen brightness. With a Touchbar you touch the icon, which then moves the items to the side where you have to adjust your finger to make the adjustment and perhaps even click the "X" to return the Touchbar to its current defaults. The other problem I have with it is the virtual buttons it presents are not even needed. For example, when logging into the laptop the Touchbar will display a "login" button, but why? I just type my password and press the "Return" key all without lifting my hands. Why lift your hand to reach for the Touchbar to click the "Login" virtual button?
Now I can see some limited number of apps potentially being able to take great advantage of the Touchbar, but none of the apps I use do so.
Personally if Apple had added the Touchbar in addition to keeping the function keys I think it would have been a good compromise like I've seen a standard PC gaming laptop do (I probably would still avoid it, but at least there would be a choice). You really should check a Touchbar laptop out in person in order to see if it is something you may like or feel is useful.
Even if Apple offers a Touchbar and non-Touchbar model laptop, be very careful to look at the laptops' other differences since one will likely have more features than the other and may not be otherwise identical. The 2016 & 2017 non-Touchbar models were completely different from the Touchbar models. While the Touchbar models had a lot of issues, the non-Touchbar model had even more problems with the hardware. I don't have any experience with the newest models though.
Good luck in making your decision as you may find the decision may not even involve the Touchbar itself depending on what else the laptop offers you compared to the other models.