can I ask what computer you upgrade from?
because of course the new MBP is going to be "good",the argument here is it's not "amazing".when compared to the better Macs launch,it's disappointing, otherwise,orcourse a brand new laptop will be zippy and of course the high resolution retain screen is nice, but here is the problem it's just not good enough.expectation were (rightfully) much higher, and considering the extra expensive price tag, the thing failed to deliver.
Well I had a MacBook Air 2015 and yes you are right it depends from what computer you come from, but that can be said about ANY upgrade.
I mean of course if you have a 2015 MBP the jump is not so great, 1 generation is usually a small bump and never a HUGE improvement.
The problem is expectation, people expect too much, I mean consider this:
Better display (Of course better than the MBA but yet better than the last MBP)
Faster SSD (Of course faster than the MBA but yet better than the last MBP)
Faster CPU (Of course faster than the MBA but yet better than the last MBP)
More connectivity (or should I say more flexible, I was really skeptical about this but hey it works better than I thought, all i needed was a 2 $ adapter, and soone those will be gone too

)
Better GPU (Of course faster than the MBA but yet better than the last MBP)
Better Keyboard (you just need to get used to it, but it really is better)
New TouchBar
Improved sound (boy this one was a huge difference!!)
Improved chassis
Lighter (not lighter than a MBA but still impressive for a 15 inches!)
Smaller bezels
Smaller footprint (not smaller than a MBA but still impressive for a 15 inches!)
Improved trackpad
Touch ID
I mean it is hardly just a display or an ssd as you imply, the machine improved all around and it is a big update, now is it worth if you came from a 2015 MBP? Probably not, but I bet the 2017 MBP won't be worth an upgrade from the 2016, as much as a 2015 was not worth if you had a 2014.....
There are many little pieces then when you put them together makes this a good update, a little pricey and that I completely agree, but I was able to get it from AMAZON at 450$ less then the official price tag, wich puts it back in the right price range.
So even without considering I had a MacBook Air (wich was docket with a high res display anyway) it is not the faster cpu, nor the faster ssd and neither the display, but the whole package to me felt worthed. (personal opinion)