Do it in a boring way - via neighborhoods/groupings and not in a sexy way via point to point fiber everywhere. But even at $1200/household it is peanuts: birds being able to supply a large amount of bandwidth are expensive i.e. trench digging would be be far cheaper than launching and maintaining a pile of birds and earth stations to get even a fraction of that bandwidth magically beamed from above.

Edit: Been there - done that. Supplied IP over satellites. CapEx is a very solvable problem. OpEx would kill you.