Probably because I live here in Las Vegas (and tend to think of craps as the game degenerate poker pros play when they want to feed their gambling addiction), I missed what is probably for most people the biggest difference between Obama's $1-$3 poker games and McCain's high-stakes craps games: everybody plays low-stakes home poker games, not everybody plays craps in private rooms on the Las Vegas Strip.
In other words, it's a regular guy (Obama) vs. the out-of-touch elitist (McCain).