It could be as simple as losing NH and NV and everything else staying the same.
That makes a 269 - 269 tie where the unfaithful WV elector could over-ride the will of the American people.
I'm inclined to agree with all the posters who have said that this guy is just trying for his 15 minutes of fame. I don't think he'd cast his vote against Bush in a scenario in which his vote meant something.