Collectibles are limited editions, or otherwise rare or hard to find items for hobbyists. Stamps, baseball cards, antique furniture pieces etc. It's a market because there are a community of people with that shared interest. Is there such a community around this?

CBMF is a grainy home video that doesn't feature anybody famous, or provide context to some historic event. There is no CBMF fan club. It's just a transient memory for most people, one out of numerous YT videos they've watched over the years.