Worth noting, among the “number indistinguishable from zero” are contemporary classics such as: Schindler’s List, Dead Man, Good Night & Good Luck, Ed Wood, Clerks, Raging Bull, Nebraska, et al…
Anyone who studied Media Theory will be well aware of the ubiquitous Marshall McLuhan quote, “The medium is the message,” and understands that the means with which a piece of media is produced and distributed tells a story in and of itself. Sometimes that’s in service to the broader narrative, and sometimes it’s simply a product of circumstance, but either way it carries its own value for the audience, and I would argue that it would be arrogant for one to unilaterally decide whether such things are important or not to preserve.