I just think it's easier if you don't start running into ranked teams in the second, or maybe even first, round.
But with the decline of Southern Maine, the NESCAC is about the only strength in the Northeast.
In the middle of the last decade, you had diverse strength in the Northeast, the Mid-Atlantic (but no one got a national championship), the Great Lakes, the South, the Central and the West.
2001 Washington U. UAA/Central
2002 UW-Stevens Point WIAC/ Central
2003 Trinity, Texas SCAC/South
2004 Wilmington OAC/Great Lakes
2005 Millikin CCIW/Central
2006 Hope MIAA/Great Lakes
2007 DePauw SCAC/Great Lakes
2008 Howard Payne ASC/South
2009 George Fox NWC/West
2010 Washington U. UAA/Central
2011 Amherst NESCAC/Northeast
2012 Illinois Wesleyan CCIW/Central
2013 DePauw NCAC/Great Lakes
Only one national champion from the Northeast/East/Atlantic/Mid-Atlantic. IMHO, the strength in women's hoops has been west of the Appalachians.