Its an emtertainment expense. In no way should you ever consider gambling an investment. For me i like to gamble just like i lime to see live sports. I pay a lot to see those sports and in ruturn i get entertained. Likewise with gambling i lay down money in exchange i like to be entertained. No different.
Gambling is okay for you as entertainment and you don't choose gambling as anything other than entertainment, especially as a source of income. For those who choose to gamble solely for entertainment and spend a lot of money on gambling, gambling will become an expense. But there are many gamblers out there who see gambling as a source of income rather than a source of entertainment, and for them, it should be considered an investment.