2012 Presidential election--meh.

I'm almost literally of two minds on whether I want to vote for Obama or not in the general election. I am 100% sure he is not going to do anything in a second term differently than he has done so far in his first, especially given the very real possibility that the best Congress he will ever get to work with left the building after 2010. However, I am also 100% sure that any Republican will be worse. So, do I go with the concept of voting for "the lesser of 2 evils", or do I instead act on the truism that "the lesser of 2 evils is still evil" and not vote for one of the two major candidates at all? At this point, I really am torn. Some have tried to tell me that in this event, it's all about the Supreme Court and nominees thereto, but I don't think I have to consider that. I think that no rightwing justices will ever again retire during the Presidency of a non-Republican, so the odds of us steering the Court back to sanity are nil. Conversely, I think the "liberal" justices won't retire if the President is a Republican, either, if at all possible. None of the justices are going to be as old as Stevens was when he left after the next term is up, so here's how I see things. If Obama wins, maybe Ginsburg steps down, and Obama names another justice positioned where his first 2 nominees were. A wash, maybe, or even slightly worse? I don't see anybody else leaving voluntarily. If a Republican wins, maybe Kennedy steps down (I think Scalia will have to be dragged off the bench in a bag) and we get a showdown between a complacent Senate and a crazy President for his replacement, who will probably be a wash at best. So either way, the best we can hope for is a wash.
Of course, there is always the possibility that a judge will die in office unexpectedly, but other than Rehnquist, you have to go all the way back to the early 1950s to find another judge who did so, and Rehnquist had an active cancer. While Ginsburg has had both colon and pancreatic cancer, there are no known reports that either are still active. She recently had surgery for the pancreatic cancer, and the doctors have said that they caught the cancer "early." Unsurprisingly, nobody's talking beyond that. (There are no reports on Kennedy's, or Scalia's, health that I can find.)
I guess the questions about Ginsburg's health, and the possibility that Scalia or Kennedy, who are both going to be in their late 70s by the time of the election, could keel over suddenly, will push me to vote for Obama, but my reality is that I am relatively unconcerned about the Presidential race, for the most part. Retaking the House and keeping the Senate are by far more important to me than whether Obama gets 4 more years to disappoint and aggravate me.