If you have the time and the money to do it, you should head to Philly and visit Reload. I was there a couple of weeks ago and stopped by Reload and picked up a frame pad. They have a really nice space in the Northern Liberties section of the city.

It is a hour and 20 minutes via Amtrak (expensive) and a little over 2 hours doing the New Jersey Transit/SEPTA route (much cheaper). Yet, NYC will probably keep you very busy so you might not have the time.