I enjoyed reading your essay. I particularly like the conceptualization of a 35mm film as a complete story, captured as it unfolds in time. The contact sheet does, indeed, add an extra layer of storytelling. I think, however, that, potentially, a 35mm digital camera can perform the same function, but, as you point out, the temptation to fill up the memory card and hope for some "keepers" is often too great to ignore.
I prefer to think of a roll of 35mm film as a finite form, one that gives me both space and limitation. I enjoy the process as much as the aesthetic of film images.
Thanks for sharing the article!