Yeah. Are there any teams in the sports you watch that are sponsored by Gambling Organisations?
Also. Why is gambling focusing on sports instead of casinos or other forms of gambling?
Pro sport leagues generally ban any official contact between teams or players and gambling organizations or the act of gambling on sports. The bans are intended to avoid any hint that a player or team would adjust the outcome of a game in order to benefit people or organizations that are betting on the games.
http://en.wikipedia.org/wiki/List_of_sporting_scandals
Gambling organizations will take bets on ANYTHING that people are willing to bet on. People are passionate about sports and want to bet on them. Since the odds are not fixed so that the random luck of most casino games cannot give the house a fixed percentage of your bet, many people like to gamble on things that they can use knowledge to improve their odds of winning.
In a casino, knowledgeable playing can give you a slight advantage over the house (who still wins money from the less knowledgeable players) in Craps and Blackjack. However, the main skill that you can use in Blackjack is "card counting" and they will politely tell you to leave and not return if you are caught doing it completely in your head. If you use ANY device to count cards, you may be spending time in a jail or prison.