I try to think of crypto-currencies, and their collectors as a class not unlike POG collectibles and POG collectors. The age bracket associated with each probably experiences significant overlap too, so the idea seems fitting.

Taken to extremes, if any given POG collector suddenly went bankrupt, due to a crash in values in the POG collector's price guide, how many people are associated with a particular POG collector? Would they notice, when that POG collector's business failed, because of an inability to meet obligations, now that all POG collections are worthless?

If banks and businesses accept The POG as legal tender, how many transactions disappear with the POG craze, leaving them unpaid, or stuck holding worthless assets?