People might actually say, "Why not Romney, then?"
I still believe Romney will get through the GOP primary, because the Secessionist's Walker, Texas Ranger stuff will not play anywhere outside of the Old Confederacy. Also, it seems like every day the "Texas Miracle" looks less and less miraculous.
So if it is Obama/Romney, Obama's got his work cut out for him, because he's spent most of the past 18 months validating the GOP's deficit mania and talking about how government needs to "tighten its belt."
If the economy gets a lot worse, look out.