CC, if you aren't familiar with Land's story, his biography by McElheny would be a very interesting read. Despite a virtually limitless research budget, Land barely got instant films to work within Polaroid's own financial constraints. More than once, Land was within days or hours of a hard delivery deadline for a product that wasn't yet working. What impressed me in the biography is how much risk he assumed, and how masterful a salesman he was.... It's quite a story.
You might say, well, we already have the formulas, we can reproduce them. That's correct, though bringing a product to market in a viable way would be very tough. Here is one way I suppose that it might be done on a small scale: it might be possible to persuade someone to make the separate pos and neg sheets and the goop and then get people to do the rest themselves. The one sheet is "just" a complicated layer-cake of dyes and chemicals which one could look up in a patent. As for packed and podded pack films ready to shoot... fahgedaboudit!
So goop-it-yourself is the best hope for LF polaroid, I'm afraid. :rolleyes:
So I think beyond that we must keep Fuji-san in the business as long as we can, by using their current products.
P.S. I don't know what the numbers are, but my suspicion is that polaroid made more profit from the plastic polarizer materials than the instant films. At a glance, I was very, very impressed by the intricacies of the polaroid process. Getting those films to work as viable commercial products was a spectacular accomplishment. So spectacular that, frankly, I don't think it'd be easier to accomplish now, even if we had modern PhDs and the basic recipes in front of us.