However that extra effort does not make one the other. Nor will one ever replace the other. To me the important thing about the two mediums is not how much they look alike. It's how much they look different. To me video always 'looks' like now.
Film looks like another time.
The past,present and future but not now. Also,I will defend even further the playback on the set because these days I see less and less directing and more cutting from that high chair. After all, the worst case sinerio is to have nothing to see at all. I've Known you since 1952 and you haven't changed a great deal in that time. Don't ever stop being who you are.