It's a foregone conclusion that NY will go for Obama. So a vote for anyone else but him is a "wasted vote" if one believes the idea that voring for the losers is a waste. I don't, and will be voting for Barr. I like Nader, but Barr fits more of my ideals better.
The only wasted vote is the one not cast.
Even if it's to show up, and be counted as a none-of-these no-vote, it counts.