I mean, that might be true, but it might be the steady stream of new people who show up and stay for 5 years before leaving that make the city more valuable, and the people who hunker down just kind of gain the windfall. I'm sure you develop some deep, meaningful personal networks after living in the same place for half a century, but at the same time, outsiders probably aren't using that as a factor when deciding whether some place is a desirable place to live.