Me, I have trouble arguing with it. And I normally love to argue.
Though I take the tact that 'not voting' is a vote itself. I dislike McCain, I loathe Obama. And the times a third party candidate actually made a difference (most noticeably through Nader), the general reaction was that of utter horror. And whenever the vote is close, the courts tend to get involved.
"Vote in the hopes of a landslide" isn't all that persuasive to me.