If you want gashmiyus (yes, a minyan and kosher restaurant on every conrner IS gashmiyus), then, yes, live in NY, if you want ruchniyus, move to out of town, where yiddishkeit is not taken for granted!
(By the way, I grew up out of town but have been living in NY for the past decade, because of circumstance, not choice)
I remember, when I was growing up, a visiting bachur commented that he sees and has access to more gedolim (visiting this out of town community) then he does in their hometown of NY!