I know that as gamblers, everyone can relate to this question, as we have surely experienced it in real situations.
Suppose our bankroll is $100 and it has already grown to $500, would you quit or continue?
It depends on individual differences, if the person is not so muchly addicted, he will decide to call it a quit. But if it's a gambling addict he will continue playing till he lost it all. For me I will quit.
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.
Lolz.. what is the exccence of keeping or holding onto $10 again after losing $490? Its better I use it to gamble. Afterall that amount can't do a reasonable thing again. Who knows if toyling around with $10 can boost your bankroll in dieing minute.
There are times we should call it a day and that $10 may actually be the difference when we gamble again the next day. I think there are gamblers who experience this kind of thing.
Recently, I did actually experience it. I autoplay slots before I sleep at 1000 rounds with a bankroll of $10 but I am just betting for cents so it would take a lot of time before I get wrecked. When I woke up, all that was left was 1 dollar and a few cents. That next day I gambled it again on the same slot game and Voila! I got it back to $12 and was so happy that something was left for me.
Sometimes our fury makes us do things that ain't right anymore. Maybe one refresh of that slot game could change things and after that happened to me I started to rest whenever I could hoping it would give back something whenever I lost and it's doing great.