Because like I said, each shot you take on film is no longer just an object of art, it's an object of memory. And the more time and effort one takes to take the shot, develop the shot and then, possibly enlarge and print the shot, the stronger the memory is.
Perhaps not for anyone else but for the photographer itself, but it still matters.
I have taken countless photos with my dad's DSLR and my phone, but I barely remember any of them.
The shots I took with my film camera? I remember most of them. I remember reading the light, setting up focus and exposure, I remember loading that film into my little soviet development tank, counting seconds and fuming chems in my bathroom, I remember scanning them, carefully, I remember people I shot and moments I captured in those shots. And I genuinely treasure all of those little photos.