As long as you are still sufficient for your family's needs, there is nothing wrong if you gamble. Enough first your family needs, and the rest you can fight at gambling, with that you will play without pressure and maybe luck will side with you.
I agree with you, it is not wrong if you do not do it regularly. Also if you are discipline to do it, you know your limit, you do not gamble all your money. You make sure that you do it just fun but not for looking money to gain to.
We can consider it wrong when it results negatives in your life and you bet all your everything just to provide your gambling.
I agree, as long as we can keep this habit from having a negative impact on our lives, I feel gambling isn't that bad. And since gambling will involve emotions from time to time, it would be better if we didn't do it in a long time span.