Depending on what infrastructure is already in place, I think $15/mo might be many times the break even price of supportable customers per unit of equipment/infra if amortized over a couple years.
I work for an ISP. We actually build our own fiber networks by stringing fiber along aerial infrastructure to cover whole neighborhoods and then doing drops to individual houses on orders and supplying the ONT, and we can make that work and be profitable after a few years at ~$50/mo, but that's what I would consider many multiples more expensive to deliver than providing service over existing infrastructure, if that's actually what's being talked about here.
And this is in CA and in the bay area and LA areas, so I doubt the regulatory and cost difference factors significantly, unless there's some cost required to be paid to the city to use their infra.
I work for an ISP. We actually build our own fiber networks by stringing fiber along aerial infrastructure to cover whole neighborhoods and then doing drops to individual houses on orders and supplying the ONT, and we can make that work and be profitable after a few years at ~$50/mo, but that's what I would consider many multiples more expensive to deliver than providing service over existing infrastructure, if that's actually what's being talked about here.
And this is in CA and in the bay area and LA areas, so I doubt the regulatory and cost difference factors significantly, unless there's some cost required to be paid to the city to use their infra.