People are just greedy, greedy for money and they are all looking for a way to get rich quick. Some people believe gambling is the way to go, just because they won 1 time big they will keep trying to win again and again. Gambling biggest problem is that it is addictive. You cant control yourself from it once you start it. I am writing the Book on Gambling Habbits. Hopefully it will be in market next month. 
If you are such expert in this field then what do you think of this thread? It is helpful and information are correct?https://bitcointalk.org/index.php?topic=1475232.msg14872353#msg14872353
It's partially true because i agree experts will not get time to see our conversations here but few gamblers will watch this here we will discuss our daily experience so they will get some information so this will helpfull to them in some situation.
And off course people are greedy about money tose who don't want money say? if you are big shot then also you are hungry for money right.