I think film technology has been at a high standard for a long time. Many of the films work great once we figure them out, and they give us beautiful results. So I'm not sure that the technology had many places to go. Instant, POP, B&W, color, there was a lot of different ways to take a photograph at one time.
Some of these technologies stopped production before digital appeared though, so it didn't really change that much. It's not digital that has changed how photography works in this world, it's mating it to the internet that has done the trick. A digital camera isn't that much if you can't send the photos in an email or otherwise get them uploaded for others to see.
Before the internet, to see images we had to look at things in a book, go to where the work was, or hope that a magazine or TV spot might feature it.