Yeah this is really a big decision line while gambling and drinking and some casinos understand this. Sometimes however, if you are inebriated and lucky to be winning, the day is yours to take because you will seem to be doing everything right and the winning will keep coming in.
Gambling is a game of mind, alcohol will strengthen your emotion but it will weaken your mind, so beware of that.
But that is happening in the real casino. But if we are playing online gambling, we can do that too but we cannot always to talk to other people because many of us are hiding our gambling activity from other people.
So I think maybe the bigger cost is when we buy something from the casino. But if we use online gambling, we don't have to think about the cost. We only need to care about how much money we will use to play gambling.