Community-as-a-Service: A Business Model for the 21st Century

The answer is: CaaS — community-as-a-service. Community-as-a-service is the phenomenon where access to a group of people is valuable enough that it can be considered a marketable product.

While country clubs are out of reach to most people, the internet (being the great equalizer that it is) has enabled many kinds of affordable yet valuable communities to spring up.