I've never won anything from bitcoin gambling, no matter the site or the amount. Skill games or luck games. Gambling = lose all your $ imo
All gambling site is need of some luck, amount is only thing you need to boost your luck here, with a great amount you may win some cash but remember of greediness that will lead you to end of your cash. So it doesnt matter when you lose or win if you enjoy the game it will be fun though

It is actually important that people dont think that they can win, because you can't win in gambling! You can win for a little while but you can't win in the long run.
House always win, that is the truth of gambling. You won't be able to earn money, you can have lucky game or two, but not 100 in a row.