Right, just take as much money as we can and be just contented what we have. But that is easy said that done mate. I don't know if you have been in that situation that you might have won already, but still you wanted to continue.
It happened to me a lot and every time I tried to continue to win more, things went very badly for me, in fact I lost everything, so thanks to those consecutive experiences, that's what I say. However, there will be players who try and win , and that's due to the luck of each one of them, but for me things go badly, I've seen it a lot.
We aren't always lucky and this Is the simple fact, even those people you think continue to play after winning and still end up winning more do also have times when they try to do that and they end up losing both what they had previously won and including their capital, so it all runs down to how lucky or unlucky we are at a given moment.
I also have had such experiences alot of times when I gamble and win, and I feel like gambling some more only to continue gambling and end up losing my previous won money and sometimes the capital as well, what I now do is quit gambling immediately I win, it doesn't matter when I started, I quit or simply withdraw some money and continue to play with the amount remaining, if I end up losing that, it's fine and not really a loss since I've gotten something out.