Shopping in New York City is great because I know I can buy good quality products more cheaply than in Tokyo, London, or Paris. Clothes, handbags, Jewelry, books, CDs, and DVDs are all a little bit more reasonable if you look around.
I love the delis, too. All big cities are very cosmopolitan now, but New York has something very real about it. If I buy a burrito, it's like I'm in Mexico, and I can buy fresh coffee beans from a plantation in Jamaica.