Based on all of that, you should buy a used 16" TouchBar MacBook Pro. Great value and you get your touchbar.
I love the fact Apple releases new versions of their devices every year. I always buy at least 2-3 generations back to save 50-70%. I'm using an XS Max iPhone at the moment.
The only exception is my 14" MacBook Pro. I had bought a used 2015 15" Retina MBP in 2017, and it died 2 years later. In 2019 I couldn't justify buying a new MacBook given the crappy design, and that crappy design was keeping the 2015 model values high. I didn't want to invest in another 2015 model, so I waited 2 years for the new form factor.
Now, if you buy brand new and actually keep your device in perfect condition, keep all the packaging etc., you can sell it every 2-3 years and be about the same TCO as buying a 2-3 year old device and using it for another 2-3 years. In most cases the cost is about the same.
But the risk of buying a $1000+ iPhone and dropping/losing it keeps me on a cheap XS Max. My 14" MacBook is much less likely to be damaged or lost accidentally, so I didn't mind dropping the cash on it knowing the industrial design will last the next 5-6 years. I'll sell it in the last year or two perhaps of this run and bridge on an older used machine till the next major redesign.