Fertile land, timber, iron ore, coal supported farming, fishing, trading, manufacturing.
Greater tolerance than other British colonies—attracted Quakers, Baptists, Jews fleeing persecution.
More democratic governance; colonists had stronger voice in self-government.
Labor demand and skills shortage allowed hard workers to rise in status and wealth.
Temperate—more comfortable than New England winters or Southern heat.
The Middle Colonies (NY, NJ, PA, DE) offered a compelling mix of liberty, livelihood, and livability.