Something about how the big city allows you to follow your interests and no matter how weird they may be, there is a good chance someone else in the city shares those interests.
It's a gift.. A beautiful gift, but can also be a curse because your peers can get really judgy! I mean, If you don't drink Indian Pale Ales that capture the right elements from Alaskan river bifurcation, with naturally distilled water from coalescing alluvial fans from the "right" mountain fronts are you really drinking beer?
Seriously tho... Is it even beer worth talking about?