My experience has been the exact opposite. Minimal effort in backing up the digital copies makes them easier to access than the film I have from the same period since it's slowly decaying in a box 1,000 miles away.
I also remember an astronomic "observatoire" buying lifetime guaranteed ISO9600 CD as a secondary backup of jpeg encoded pictures in the early 2000's (if you look at it all choices that were legits) that discovered 2 years after the primary backup failed (HD) that the secondary also failed.
Whereas microfilms are still less expensive then and now, and still guaranteed to be more durable with less operational costs.
Those who sacrifice a cheap reliability for the illusion of an expensive ease of use deserve neither one, nor the other.
