[southerntofu]

Like your fun, but for some extra seriousness, 10k$ is the order of magnitude you pay to setup FTTH in a big city. Most times, consumer ISPs eat the cost and make economies of scale by connecting entire neighborhoods, but if you don't have that chance and for some reasons ISPs won't connect you you can count on 10-50k$ infrastructure bill.

Also, consumer ISPs like Comcast are the worst. If you have good relationships in your neighborhood/municipality, going collective like with SCANI/Freifunk is always going to be more interesting and useful.