The wealthy want to live and work where there is nice real estate. In planning headquarters and million plus homes in nice locations, they continue to dictate what the market will bear. The poor will be more and more often priced out of locations with a good view, water front property, or anywhere centrally located. Washington DC is a perfect example of this type of gentrification. Some of the worst parts of the city were Potomac-side property and had easy access to downtown. It was only a matter of time before the poor got priced out of the same convenience that allowed them to work all the service and labor jobs downtown without a costly commute. This trend will continue until most places look like Silicon Valley, with low income service providers living in work colonies outside of the city.