The problem is that not everyone can afford that. In fact, almost no one can afford that. The internet as a whole is only viable because of vastly pooled resources - it could never have happened on a "my slice, get off my lawn" basis. Even if you can afford it, you're being vastly overcharged compared to a decentralized network. One that already exists in many areas, most of it is already fully painted with WiFi supposing people could actually all use it.