I suspect there's a self-sustaining cycle. If you know the building will be torn down in 20 years, there's no point in spending $$$ on maintainability and long

I suspect there's a self-sustaining cycle. If you know the building will be torn down in 20 years, there's no point in spending $$$ on maintainability and long-life building materials. And hence after 20 years, it might be thoroughly worn out.