The real reason to get out the vote...

William Gibson puts it quite succinctly (no wonder I love his books...):

This isn't the election in which to make the quixotic but satisfying point that you'd really rather vote Green, or the quixotic but satisfying point that you'd really rather not have to vote for any more white men in tight blue suits at all.

This is an election in which to vote for *the greater likelihood of there being more elections in the future*.