The Megatropolis

Recent data as well as new articles are now showing that metropolitan regions on the east coast are now starting to merge with one another.

Some D.C. area workers now commute from as far as Baltimore or West Virgina for cheaper housing
Some Baltimore area workers now commute from as far as Southern Pennsylvania for cheaper housing
And now some New Yorkers have reached as far south as Philadelphia to find cheaper housing

This leaves one to wonder if we are looking at the beginnings of a future Megatropolis? A Megatropolis that would stretch from the southern Connecticut commuter towns and cities that feed New York City in the north and to the edge cities in northern Virgina that feed Washington D.C. to the south.

A November 15th article of this year in the Washington Post details Marylanders slow migration out of the state in an article titled "Housing Costs Driving Away Marylanders"
http://www.washingtonpost.com/wp-dyn/content/article/2007/11/14/AR2007111400049.html?nav=rss_realestate

Excerpts:
"High housing prices are pushing Maryland residents to move farther from Washington and, in some cases, to neighboring states such as Pennsylvania and West Virginia, according to a new study released by the Maryland Department of Planning."

An August 14, 2005 article in the New York Times wrote that artists who have been pushed out of Manhattan and now are being priced out of Brooklyn are now coming to Philadelphia in increasing numbers in an article titled "Philadelphia Story: The Next Borough"
http://www.nytimes.com/2005/08/14/fashion/sundaystyles/14PHILLY.html

Excerpts:
"Philadelphians occasionally refer to their city - somewhat deprecatingly - as the "sixth borough" of New York, and with almost 8,000 commuters making the 75-minute train ride between the cities each weekday, the label seems not far off the mark."

What's your opinion?