I like the guy who says 10K customers or go home (paraphrased)...
https://www.quora.com/Is-it-possible-for-me-to-become-my-own-Internet-service-provider-ISP-What-exactly-are-we-paying-AT-T-Verizon-and-other-ISPs-to-do-Precisely-how-do-they-provide-Internet-service
