I can't speak to this particular NYC subculture, but it is definitely the case that all round the world long lines form around "the best" version of a thing even when it is literally the same thing you can get at a half dozen vendors on the same block. Some of the people in line may be tourists, but there are also plenty of local people who just enjoy the hustle and bustle. There are people who really do find pleasure in being part of something popular, doesn't even matter the intrinsic quality, what matters is the hype. If they chase that experience, who cares? It doesn't affect your life. Even if they overrun your daily haunt, just go to the next one down the street, since it didn't matter anyway. It seems to me there are much worse things to worry about than people who get a thrill out of waiting in line.