That's certainly possible. People have been trying to figure out what threshold of gentrification is required to keep families with means from leaving. I expect

That's certainly possible. People have been trying to figure out what threshold of gentrification is required to keep families with means from leaving. I expect it's very high in DC and hard to replicate elsewhere. That said DC is a small place surrounded by some significantly urbanized parts of Maryland and Virginia (eg Silver Spring, Alexandria, and many of the communities with metro stops).