If one considers the penetration of digital film-making to be the inverse of this chart, I can't remember any technological transformation that occurred this fast. From the WSJ
Incredibly, this likely understates the speed at which traditional film has been replaced, since some of these Kodak numbers likely include a bump from the exit of their rival Fuji from the film manufacturing business.
I will confess that I was among those who feared this transition, worrying that digital recordings would lose some of the special visual qualities of film. What I failed to understand, and most people fail to understand in such technical transitions, was that whatever was lost (and it was less than I feared) is more than made up for in new capabilities in the new medium.