In Manhattan, there is a party every night. In fact, there's probably hundreds of parties every night.
I like the afterwork cocktail parties held in honor of openings/celebrations of new stores or products the best. Not only do you get free food and drink, you get a bag full of goodies that you can sell on ebay.
When I first moved to Manhattan and pennies were sparse, I would angle for invites from anyone to get the free food and drink. I mean, where else can you get food, drink and products for free?
Only in Manhattan.