Let's be more reasonable about this
It looks from the video, and trying to time the rate at which separator tapes go by, that one roll goes through the machine every 5 seconds. That works out to 720 rolls / hour. So a 1000 rolls a day isn't breaking a sweat for one processor. A slide mounter does a slide a second, or 3600/hour = 100 rolls/hour, again making a 1,000 rolls/day a middlin' number.
First off (if it needs to be said), just because we see a talking head on TV or some video of a process does not mean we are getting reliable information.
So, let's look closely at that video. First off, it is shot in artificial light, not in the dark, so we must be seeing processed film coming out on the way to being dry and cut. Look at the white tape... I am assuming these attach the ends of the rolls (so there can be one long stream), no?
Secondly, it takes more the 5 seconds for the chemical process to occur! Are you suggesting that the film is only in chemistry for 5 seconds?
(Also, assuming 5 work days/wk and 50 working weeks/year, there would be more like 250 days of processing/year, not 365.)
Suggest that you can't estimate the process time (and thus the total throughput) by looking at that video of the film streaming by.
Now, about the "1000" rolls per day... you did hear that owner say "probably", didn't you? Human estimation being what it is, he could be off easily by a factor of 2. Then we have to ask whether the owner is being honest (to himself... I'm not suggesting that he is intentionally lying to us). The human capacity to elevate
wish over fact comes into play in all human activities.
His accounting office/front end
ought to know the actual number, as they count orders as they come in.
Suggest that Kodak, and only Kodak, know for sure how much Kodachrome is produced. We know though that from the quarterly reports of both Kodak and Fujifilm that traditional business film and processing continue to decrease.
Silver halide photography has become an
alternative process, along with platinum printing, carbon printing, etc. I love them all... and plan on doing more film shooting. But lets us not deceive ourselves into believing that all will continue to be fine for film lovers. I've concluded that my interest in film will long term be that of black and white, as I do believe that can continue on till past all of us are dead and gone.