I have no idea if casino will ever accept bitcoin as exchange for chips that is used in gambling.
well that's good idea maybe they will accept bitcoin, some gambling sites using bitcoin why not in casino's, but I think we don't know some casino's accept bitcoin now, well I'm sure casino owners will get x2 profit if they implement this idea.
There is hardly any issue in using of bitcoins in casinos. There is hardly any place where you cannot use your bitcoins. Bitcoin is versatile in nature and it can be used anywhere in the world for any kind of task. It all depends on the owners if bitcoin and especially the regulators of bitcoin to make this thing happen. This is really a good idea and this will increase the publicity of bitcoin.
Although we are using bitcoin for gambling online, but still I think in most of physical casino the use of bitcoin is not so much common, I do not think that there is a single casino in my area who are accepting bitcoin, In fact most of the casino owner in my area still do not know anything about bitcoin. But in future we can expect that bitcoin will become so much common that even physical casinos will also start using bitcoin.