And just prior to recently working with those old negs and prints again after so many years, my opinion of the quality available from 35mm film was much better than the tested fact. Memories are often far too kind, which is usually a blessing.
Can't argue abut negs/prints, but I do disagree with your views on Kodachrome.
Scanning old Kodachromes was what actually brought me into the digital world. I discovered that the old stuff was amazing. Far better than I had ever expected, to tell you the truth, because almost all of the large blow-ups from my Kodachromes had been printed four colour litho. Seeing them on a monitor or printed up, even in small parts, to A3+ on my HP B 9180 was a revelation: they were friggin’ wonderful. Nikon F and F2 with non-AI’d Nikkor prime lenses were and are still the business. Better, I never had to return any new lens because it was a ‘bad copy’ as they say today in mitigation.
As I’ve written here before, I discovered via that scanning that properly exposed Kodachrome gave me as good b/w prints as I ever got the traditional route, and yes, I was a pretty damned good printer in my day, so I do know of what I write.
A lot of advertising photography was done on 35mm cameras; it all depended on the subject matter and the mood etc. that was being projected. That’s not just a thing of the past, and small cameras are still being used a great deal – we can take Cooter’s word for that, even if it’s now digital, but the principle remains.
Rob C