Bush already paved the way for Obama's victory.
Honestly I didn't like either of them, so I would have been happy (er?) either way.
At least with Obama we'll see change in many of the neglected areas we truly need it when we probably wouldn't have seen anything new from McCain in those areas. Even if a lot of his other ideas are ludicrous.
McCain would have been a lot better than Bush, but really still, maybe even if McCain is better than Obama, we really might need the Anti-Bush to fix everything Bush has broken. I'll deal with Obama's crap if he will fix Bush's crap :)