I’ll also point out that Seattle is a pretty cool city, definitely a cool city to be in your 20s in, and is far cheaper than NYC. Of course there’s not as MUCH to do, but there are plenty of cultural and social opportunities here and they’re generally cheaper than New York.
If New York is the draw, trust me when I say that you have your whole life to live there and NYC is a lot more fun when you’ve got a little money in your pocket to enjoy life there.