I know some friends who started becoming addicted to football gambling.
Losing tons and still winning out some in the long run.
Eventually they learned they lesson and are still winning big time by betting at only matches they know more about.
finally, they learn from their mistake, and they can choose the game that they know and they have excellent information to win the game. not all people can do this, and if they can use their sources to choose the team, then the chances for them to win is wide open, and they can make a lot of money from the game. but they still remember about how much they need to spend money in those game because if they don't do this, then they can risk a big money to expecting a bigger winning and they have a chance to lose all of their money.