Because of gentrification there are no longer cheaper burrows. You would probably find cheaper living in New Jersey.

It really is, I looked into a one bedroom apartment and the price of rent was double if not tripled what it is around here. Don't think many of the borough's are much cheaper however you could move to Poughkeepsie, Hudson area not sure on their prices but the metro north gets you to Grand Central within an hour (it's what all upstate/central NYers do on the weekends if they've got a car because it is so much cheaper than Amtrak or greyhound).