Freebitco withdrawal fee is reasonable. They have dynamic withdrawal fees and they don't charge anything high. Currently they are charging less than 800 satoshi for instant withdrawals. ‘Pmalek’ has mentioned about 3 types of withdrawal fees. ‘No fee for withdrawal’ is always attractive. And I prefer the dynamic one too. But most of the casino sets pretty high amount as fixed withdrawal fee. There is a little explanation behind it. Few casino sends withdrawal from their hot wallet. And they have to pay fees to accumulate individual users deposits into their hot wallet. For this reason they charge extra amount from user withdrawals.