I keep 3 to 10 rolls of a type on hand depending on my general use. And the normal basic delivery for me here outside of Philadelphia gets me deliveries from B&H in two days (and without burning gas). In my area there is very little 120 film around. Last I was in my local shop, they had some 35mm PX125, 24 exposures, for something like $8.99 a roll. I like Plus-X, but not that much!