Suppose our bankroll is $100 and it has already grown to $500, would you quit or continue? Conversely, if with our bankroll, we are down to $10, would you still continue or save the remaining $10? I used specific amounts to make it easier to discuss this situation. I understand that we all gamble with different amounts based on our income, but consider this as an example. You can mention any amount you want based on your personal experience; it doesn't matter.
In my experience about gambling with my money and how I know gamblers behave, it is easier to quit while losing than winning. If a day is your lucky day to the point that after some bettings, you won 5 times your initial money, oh boy, this is a rainy day, your lucky day indeed, so why go home early? That's how gamblers think. Fine, some people will be able to avoid the temptation but I tell you that most people will continue wagering, and this is one of the reasons why they lose back the money they had gained.
But for the losers, in my experience, they are pained by it and it is not all of them that are engaging in the revenge quest like that but a few. For this, if they had lost in streaks, they can't be so happy so they may likely call it quit faster than those who are winning and have more reasons to stay and bet more.
A very clear and good point, and I completely agree with you.
I actually love the fact that you mentioned it touched on the fact that it's still possible that some gamblers may be able to quit after encountering a good win, this is actually the category that I fall in, and I need not be ashamed to say that this has helped me over the years safe and made judicious use of my gambling winnings even though they weren't always much or high.
I've made it a habit to always quit playing when ever I encounter any significant win, and maybe not so significant but an amount that is withdrawable, I stop and withdraw, because in the past on several occasions, I've continued to play after encountering a good win, and I ended up losing it all back to the casino, I hated myself greatly each time that happened to me.
So, this days, I've learnt to quit when I win, and it has made me a happy gambler actually.