I came to this realization about 3 years ago. I do everything digitally, it is redundantly backed up, there is no need for a paper copy of anything.
So I stopped it, I downsized my existing cabinets from 14 to 4 and now 3. Mostly because of some older files from the 80's that we do not have scanned digitally yet.
I am really close to going entirely digital with the field crew too, I am doing this while we are slow, this way we can have all the bugs worked out by the time the economy picks back up 10 years from now.