I've voted for the Libertarian nominee for President, long before it was fashionable to be libertarian, but now understand how worthless that vote truly was in effect.
Of course it was worthless in NY. Just like a vote for the Republican presidential candidate is worthless. Obviously, you can refuse to answer this, but do you vote for the Libertarian guy or the Republican guy now? A vote for the Republican is probably more worthless. At least by voting for a 3rd party, you can show that you're not happy with either major candidate.