I did hoard a load of APX 100-120, enough to last me for a few years at my current rate of consumption. The only reason I did it was that I'd tried it and got results I loved only months before rumors of Agfa's demise. Considering the previous Ilford scare, I figured it was grab it while it was available. It's snoozing happily in my freezer. I sure hope someone brings Rodinal back.
I think that a better accumulation strategy is a "dollar-cost-averaging" strategy. When Ilford was looking shakey, I developed a habit of buying a 10-pack or two of my favorite Delta 100 every time I went into the photo store, whether I needed it or not. Sometimes it was Delta and Pan F Plus.
That way, I had a stock of film on hand, and if it looked as though the manufacturer was going to tank, I could put in a quick order for a bigger supply. I pretty quickly built up a stock of film without having to lay out a huge wad of cash all at once.
What would I hoard now? Well, Tri-X being fast might not keep as well as slower films, so I wouldn't hoard much. I seem to have developed a fetish for MF cameras, though, and I might not be through experimenting with exotic specimens. Seems to be no shortage of Holgas . . . Diana???
Peter Gomena