To gain paying customers you'll need to focus on attracting the right followers, and not just on attracting the most. Communicate often with useful information to increase your value, and focus on pitching your product in a genuine way. Make sure you have a professional web presence, and with any luck, you should start noticing your efforts pay off.
What I really have a sense of dismay about is that there is a center of anything. I think maybe Cleveland can use one. Also possibly Los Angeles needs informed cultural guidance and a place to go get it. But not New York. New York is a center, a world's fair, and a den of thieves, and a house of miracles.