Did not cancel and am happy enough with the reviews. From what i see the only negative thing about these GPU'S is the price, but that can be offset by selling your old card.
As an ex-AMD fanatic i decided to replace my liquid cooled V64 with a 2080 FE. I will sure miss the AMD Radeon software experience and all the manual tweaking it can offer plus the decent built in overlay but on the GPU department i think that AMD i just not delivering enough, shifting all their workforce to the upcoming PS5/Xbox Scarlet and leaving Radeon GPUs under-funded at a point where major features (DSBR, NGG fast path and Primitive Shaders) were broken/missing left me with a bitter taste.
Granted the early reviews are giving the 2080 a hard time due to a very small FPS lead on some titles and no performance improvement on others vs the 1080Ti, but it became clear when i saw the Wolfenstein 2 benchmarks and compared the specs of the 1080Ti and 2080 and immediatly understood what Nvidia (maybe?) wants to tell us: this card while having less ROPs, less CUDA cores and less TMUs is performing the same in general as the 1080Ti in today's games but performs MUCH better on a game that include a next-gen low level API like Vulkan.
Nvidia is therefore in IMO going full steam ahead on next level APIs compared to Maxwell/Pascal where only the 1080ti was showing good performance improvement with the newer APIs.
Of course there is also the DLSS part where AA becomes something not impacting in performance anymore compared to previous architectures and by the numbers of the games that are already gonna support it it doesnt look like it's that much complicated to implement for game devs.
These are my reasons for not cancelling my preorder and grabbing the 1080Ti. Plus the 2080 has a vastly improved architecture, better efficiency, and is more future proof. What people need to begin to understand is that FPS is not the sole factor that can improve ones gaming experience.