I never got the fuss about “Citizen Kane”. I found it good, but not great, certainly not the “greatest”. Thought I might be missing something, and gave it a second and a third chance. Doesn’t work for me.
I think it’s hard to get the full impact of Kane if you weren’t around to see it when it came out. A lot of filmmaking techniques that were pioneered in CK are commonplace nowadays, so most people see it and don’t understand what the big deal is about.