Here is the thing, there are two things we can think of it as a business. You can think of business as the owner of the gambling site or as a player. This is not really my strategy but this is what I hear and been shared to me by those who treat gambling as a business (and yes, they are gamblers). Of course if you are the owner of the gambling joint then you are only into profits. What can put money to the table and what can make the business prosper. For the gambler, it is managing the losses and the winnings so that you will not be in the losing money side of things. You treat you gambling not as entertainment but as a money making tool, and that changes your gameplay.
Gamblers would lose out always, no matter what. Manage all you want, but as long as you keep on gambling, you will lose. The only victory in gambling is when you actually quit doing it. And as for the business owner, it isn't really on a casino owner, it applies to anywhere. Users only use something because it's entertaining, or it's useful. That's why everything keeps improving so that customers can stay.
He is gambling to make additional money, the reason is very easy to say but in reality it's the hardest thing to do.
If every gambler would gambler to make an additional money then people should not be using money, I guess we are gambling to give additional expenses.
Aren't we? haha
The premise of using gambling to make additional money is already wrong tbh. Gambling is in a sense, something like online games, you play it to enjoy, not to earn money. Sure, if you're a pro, there's an earning aspect but honestly, pros earn because they have sponsorships and whatnot, but as an average joe gambling? It isn't really that suitable.