Gambling can also be a viable option for those who are depressed already. It can function like alcohol. It is not always the other way around, it is not that you first gamble and then get depressed. You can be depressed but see an exit in gambling because it makes you forget your problems for a second. Sadly though it is mostly causing more problems afterwards as you are most likely not fully in control of your mind if you are depressed and therefore feel like gambling.
Depressed gamblers are often seen to be alone and are happy with what they do. They might keep going and whether they're losing as long as it's giving happiness to them, they don't mind about the cost and the casino profits from that person.
There are times that it's not just all about the money but also we'll never know what a gambler is going through. But most of us, we know that it's all about the money, whether you're for fun or for the profit.