Answer: A series of foreign invasions affected Mughal Empire very badly.
Explanation: Attacks by Nadir Shah and Ahmad Shah Abdali, which were themselves the consequences of the weakness of the Empire, drained the Empire of its wealth, ruined its trade and industry in the North, and almost destroyed its military power.
You don't want to oversaturate the market with a mass of public goods. There would be no reason for the customer to follow up. For example if Apple released the iPhone 1-7 it would not had helped them build the following they have today.
The climate and soil of the Middle Colonies were very good for farming. Many farmers grew more than they needed for their families. They sold extra grain and livestock in the cities. Farmers used the long, wide rivers to ship their goods to Philadelphia and New York.