I know I am going to be pounced upon for saying this, but I cant help it:
I just do not understand what is so special about these photos!!!!!!!!!!
I have seen such pictures 20 years ago.
[Not saying anything against 1dx or the photographer, but these photos are NOT great for ME.]
Then I guess you haven't need to upgrade in a two decades...
I am a relatively new photographer, unlike a pro like you. I have been a motion picture cinematographer for 15 years and have done several major movies but not done much still photography. I bought a 5d2 three years ago now the 5d3 and have pre ordered the 1dx.
I will upgrade to the best available so it helps me create better photos easier
BUT the posted photos fail to show me any super technology. Again, I am NOT saying that 1dx will not have super focus etc... Or that the photographer is no good. Just that these photos fail to impress me. Photographers have managed to take such photos for decades... IMHO.