Sure but a lot of these places are also not sustainable either. A lot of small to medium cities are going bankrupt due to unsustainable urban sprawl. Many youn

Sure but a lot of these places are also not sustainable either. A lot of small to medium cities are going bankrupt due to unsustainable urban sprawl. Many young educated techies are also not really keen on the whole suburban hellscape and being completely reliant on (dino-fuel) cars either. Cost is one factor but sustainability is another that I think is important to highlight. You can get both in a favorable position but I think it's easier to make things sustainable and less costly in a place that has people to begin with (e.g. Tokyo) than one where everyone is adamantly against building up or creating less sprawl (most lower density cities that exist in the USA).