> higher density increases the value of the land. That's a very short curve that quickly inverts. Density of commercial land is what converts the sprawl to an

> higher density increases the value of the land. That's a very short curve that quickly inverts. Density of commercial land is what converts the sprawl to an unprecedented explosion of high-rises in an epicenter. The residential density decreases the value of the land after it's been fully developed, which is then purchased for commercial use and "redeveloped". This happens in most cities at some point, where downtown is converted to the new "hip" redevelopment of the previous slums.