> nobody would be buying a million masks to hoard in a bunker right now.
No, that's correct, because you can't (profitably) buy a million masks to hoard them right now.
If you'd done it on January 1 though, you'd have been able to buy as many masks as you liked.
Selling them now? Is this the height of the crisis? Perhaps.
> Real people don't behave like this.
They do, but most people don't have millions of dollars to fuck around with.
But if they think they can make a quick buck, they'll happily empty shelves in the local stores of masks, hand sanitiser, toilet paper, etc, and then turn around and try selling it on for a huge markup.
This is why I've not seen a roll of toilet paper on shelves in my local supermarkets or stores for three months now. Nor a bottle of hand santitiser, nor masks of any kind. But hey, I jump on local buy&sell sites and there's heaps of it there, at 10-100x markups.
For most of these folks, it is/was fairly low risk - they had the free cash, and they thought they could always return it. Some of them are stuck with supplies they now can't sell on, or return - so they now have a few years worth of toilet paper and hand sanitiser, but hey - it's not a huge loss for them.