I was buying Kodak Proimage - maybe have 200 rolls of it - fresh - for $10 per 5 rolls. In two weeks it's gone up to over $17 per 5 rolls. If Kodak is influencing that pricing, it must have a death wish, and I am glad I stocked up.
The outdated film I have bought selectively on ebay has been a success generally quality-wise, but even there prices have generally gone up significantly. The last twelve months has generally seen considerable increases in film prices and I think this will continue. Stockpiling is rational, the prices indicate we are indeed living at the end of an era.