While perusing the odds on NFL games during my trip to Vegas, I noticed something odd. The point spread was equal/offset for all games but the money line was not. For example, the Bears are -4.5 and the Vikings are +4.5. However, for the money line (to win the game outright), the Bears are -210 (you must bet $210 to win $100) but the Vikings are only +170 ($100 bet wins $170). In other words, the casino is not creating a fair bet--in addition to the 10% juice on all bets, they are building in an additional edge for themselves. They are able to do whatever they want, of course, but I wonder why they don't also do this on the point spread bets.