Just a few times, I'm not too keen on casinos and to play poker I use fiat sites. You can't compare software, traffic, etc.
this is very risky to played BTC casino ,most of all you need a big money for that gambling and you do not know if you will win or lost and think responsibly to make your decisions everytime you join gambling or any casino expecting that there will be no win
No, you dont. I don't know about all bitcoin casinos but the ones I've visited let you make very small bets. It's in land based casinos where you need to have big money to be (compared to online sites).