My position is that, bellweather or no, Missouri isn't a battleground state and even if it was a bellweather, that doesn't mean it is anymore. A lot can change in 4 years. But it may turn out that we're both right. While polls still show a slight McCain lead in Missouri, predictions markets now favor Obama in this state (note, the above are live links to sites with frequently-changing data, so what you see when you click on them may have nothing to do with what I saw when I went to them ten minutes ago).
So I may have to go out and vote this November, after all.