There are some who do shoulder out the withdrawal fees but not all of them but doesnt mean that they arent good ones.Its just they cant really afford to add up into their expense on shouldering the fee into those withdrawal transcations and for those who does then thats one shows about generosity of the site because not all would be offering the same thing.For those places who do have static ones then it wont really be that appealing but for those dynamic which is understandable because of the market condition.It do all varies but i do much prefer on having an option neither you do want to have that
low to high priority type of fees for you to choose on which is a great thing or option for a gambler to have.
Yeah and sometimes network asked for high fees so idont think gambling website need to shoulder that fees just for the sake of players ,and more of them also want faster transaction if gambling sites shoulder it I am sure they will always choose the lower fees to pay .where sometimes takes time before you recieve it in the wallet and not all have that patience of waiting.
I am more favorable in own exchange convertion to other currency so if other want to use low fees they can choose other altcoin instead of BTC .