Here in Montreal, I have two choices. Either I go to stores on the weekends, only to spend too much time in traffic, finding parking space. Then the store does not have what I want, 120 or 4x5, BW chemistry. Or, on Sunday night, a few clicks on B&H, I get what is needed, delivered at my door on wednesday. Low shipping costs, import duties and GST tax all taken care of on B&H website. Guess where my business goes...

I think hoarding, unless performed on a super scale bringing you the end of your statistical life expectancy, is useless. You are only introducing a (short) delay in the inevitable. Might as well adapt to current supplies and be happy with what is available.