I am a surgeon and have been digital for years. I would never go back. The ability to "see" the results instantly is invaluable for framing and magnification. I always get the shot I need and I can easily post process and sort on the computer since I shoot in raw. I'm sure there is something that film can do in some special circumstances that digital cannot but I don't know what it is. The ability to shoot video at the flip of a switch is great for grandchildren etc. The speed, both FPS and ASA, is amazing. You can practically shoot in the dark. Battery life with the optional battery pack is tremendous and it uses the XQD cards and gives 9 FPS . It is a little heavy in that configuration but not unmanageable. The video is 4K but only at 30 FPS. Hardly too shabby, better than your phone and at least as good as consumer video cameras. Tremendously valuable for vacations because you don't need to bring two bodies for that "once in a lifetime" video opportunity. Obviously the lens options are orders of magnitude greater than video cameras or your phone. The F5 and F6 may be slightly more rugged but i don't plan on having my camera run over by a tank or changing lenses in a sandstorm in Afganistan.