Well it works if everybody is rich to begin with, I guess. Otherwise I could imagine few issues with the approach of having to buy a house to be able to live so

Well it works if everybody is rich to begin with, I guess. Otherwise I could imagine few issues with the approach of having to buy a house to be able to live somewhere. It could even be a good filter for immigration - only people who can afford to buy a house could be able to migrate there. And surprise, you end up with a population of fairly successful people.