We rode the subway for the experience of it, not because of economics. I'm glad we did it just so I know what it's like and that I don't want to do it again.
In NYC, it's the crowds, the filth, and the lack of public restrooms. I was prepared for the cost, so that didn't bother me. I think it's insulting that one can drop a fortune on lunch, but the establishment doesn't have a public restroom for their patrons. I think it's absolutely disgusting that there aren't public restrooms in Times Square.
I did enjoy the Statue of Liberty a lot. I can't even remember what else we did anymore.
I don't regret going because we always hear about it so much, just as I'm glad I got to experience going to Pike Place Fish Market in Seattle. With both of those places, once is enough. The same goes for some of the attractions in my Colorado. Cave of the Winds? It was fine, but never again will I get on my hands and knees and crawl beneath a mountain. As for Pike's Peak, I could go there every month and love it every time.