Is there actually some way to win real money in this game? Seems like you can only win in-game stuff and cannot cash out?

Traditional gamblers seem easier to understand. All you need is some magical thinking about randomness or probability to convince yourself you'll come out ahead. It would appear to me the trick here is much more about getting people emotionally invested in the game first. I'm not sure how many people you could get addicted to a slot machine if the money wasn't real.