Sometimes, the amount we spend on things that don't add anything to us is always more than the amount we spend on gambling and for gambling expenses, it's even better because there's a chance that you might win and get a return from what you've put into it but for the regular expenses, once it's gone it's gone for good and it's easy to spend so much on small items without even knowing that a lot is already going into such as long as you're not taking record of such expenses.
If you win, if you don't, the money will be as badly spent as buying things that don't add anything to your life. I control every penny of my household expenses, I have children, so I can't leave any detail out, I need to have total control over expenses and income. What I have to bet is already set aside for my "leisure", I don't mix it with personal or family expenses, and although I like casinos, my priority will always be my home/family.