Some of my biggest wins have been online and in speaking with Friends I hear the same thing. I know Captain does well with the slots online.
I experienced the same. Although I don’t play too much, I have to admit that I never win something interesting on a land based casino but I had at online casinos.
Some players just don’t know when to give up. They get greedy and want more and more. That’s why in most of the cases they end losing.