I think you nailed it!
Thank you. I also want to point out that Obama is not only trying to discourage Republicans and to make them forego voting but also (and this may be most important) to get the undecideds and on the fence to say that it’s already a done deal so why should I vote. McCain/Palin need to push HARD that this is not over and that they are still in the game. Not just to make us feel good but to let the undecideds who are thinking about voting for him know that this race is still wide open.