One thing I really enjoy from New York is the diversity. As easy as it would be to lose one's heritage, most people hold on to plenty of it. And yes, people are not rude necessarily, but they simply mind their own business.
It's funny because the first time I went to NY after I had moved to Arkansas, people were "warning" me about people in the NOrtheast. I know thyeir intentions were good, but they didn't know what they were talking about. My mom's frineds are all New Yorkers and they are all very very nice people.