You're in NYC? Same here.
I've never been there. Is it worth visiting?
It's worth checking out, the selection is fairly good. Sometimes they judge the price on older stuff poorly, and you can get a good deal.
If you want GREAT prices though (sub eBay) check out my buddy at Gotham City Games in Bay Ridge. Totally worth the trip even if you're coming from a ways out.
http://www.yelp.com/biz/gotham-city-games-brooklyn-3