Digital copying gives the most bang for the buck by far, but with the caveat about readable file formats. Sticking to the photo theme, JPEG and PDF are ISO standards with long-term projections of functionality of 100+ years.
Which is why I have a few two year old jpegs on magnetic which won't open. Sure I have backups, but still...
50% of my ten year old jpegs on magnetic won't open; it was 10% of the same pictures five years ago.
I do use a digital device in my photographic pursuits when necessary.
When someone rags on me for using film, I use a middle digit, upraised.