Having knowledge about the game we play is key to success. Even if it is games like slot machines, we should atleast know the basics about payouts and possible jackpots. If we just gamble blindly than without knowing much about the games we are more likely to use money. The same goes for betting, if we don't know much about the sport than we just can take the bookmaker odds as they stand. But if we do our research we can find under valued opportunities where we can profit a lot.