Also the way to think about voting depends on whether you are in a swing state or not. If you are in a swing state then your vote actually may decide the election. If you are in a red or blue state then your vote is really an indicator of which person/party you support. If your state is already decided then in one sense your vote won't decide the election even if you choose Obama or McCain. In this case when you vote for Obama, McCain or someone else you are simply showing support. If enough people start voting for third parties then future candidates will start shifting their positions in order to try to get those votes next time.
This is the group that doesn't get it. When you refuse to vote, then you are telling politicians that you don't matter.The other group that seems to confuse me, is the hardcore I ain't voting for anyone crew. Like that will show them... It just doesn't make sense to me.