Matt Zito hit the nail on the head. Let's not forget that the NYC finance workforce probably has about as many tech people as all of SF tech. GS has more programmers than FB after all. http://www.businessinsider.com/goldman-sachs-has-more-engine...

NYC definitely has a "money up front" attitude, but the enterprise ecosystem is really taking off here in part because there are so many customers, but also because of the great community builders like http://www.work-bench.com/