Many people said the gambling is just a game and another people said it is Investment. How do you think? 
Gambling is a game. It is for fun, for past time. Gambling is where you spent money or other properties without knowing if you win or you will lose. Some use gambling to earn to have income but I don't see an investments in gambling. You may win money with gambling but not all the time. For sure losing more than wining when it comes to gambling when you are greedy.