I find it difficult to believe that houseboats are inherently less expensive. It seems more likely that there's some reason house boats cannot be made as large and expensive as regular houses, so the average houseboat is much cheaper than the average house, even if it's more expensive than a house of the same quality.
The internet gets much more difficult if you don't live in cities. While it mitigates the costs of people not living near each other, it does not remove them. There are still lots of people putting large amounts of time into physically commuting.
Why not use mobile homes? They can't be stacked in three dimensions like apartments, but at least you can put them in two-dimensional grids.
As per a recent comment this thread is meant to voice contrarian opinions, that is anything this community tends not to agree with. Thus I ask you to post your contrarian views and upvote anything you do not agree with based on personal beliefs. Spam and trolling still needs to be downvoted.