Right now, there are primarily two types of people - 1)oh crap, I didn't buy any .22, if I see a box then I better buy it OR 2)Hey, .22 ammo, I can gouge some desperate sucker right now. That is the fascination.
Actually three. You left out: 3) "I've got a metric ton of it (because I used foresight), so I'll just watch the other two classes of knuckleheads battle it out".