Roger, I'm not pretending to be HCB who took 8K shots in two weeks at some of his magnificent trips. Nor I'm GW who was taking it on eight rolls per each block. But if have to take it on this frame rate it is taken with DSLR.
Most of my photo walks will lasts on one roll. One roll per day if I'm on the trip where I could take pictures. Or one roll per week or two weeks if I have my camera with me every regular day. Yet, I have two pictures threads on RFF with thousands of views and I have more frames I could print.
I never missed the shot, because of single stoke of index finger or advance lever was not fast enough. But most of the time I'm missing it because it wasn't advanced in advance 🙂.
I have zero interest in 18mm, they as fetish to me as fish-eye indeed. GW used 28mm and find 24mm to be too wide for him. I'm not as genius as GW is, 35mm is fine for me to cover it all.
Half-case is for protection. On M-E I already have one of the button letters faded, due to constant contact with my belly 🙂