Regarding your second paragraph, one must remember that there is a minimum length of film that must be coated and a minimum length of leader to thread the machine! This amounts to over 3 miles of film in one shot. Also there is a minimum operating speed. This means a lot of leader for small runners and a lot of idle time. And, the product they make will spoil. So, they cannot make too much.
I've said before that this is like the produce or meat business. You have to get things just right. Right now, things are not "just right".
The problem is that no one seems to understand this dilemma.