I it not about having options only.
It is about making it fast and without problems. Preferably decentralized.
freebitco.in for example is rarely doing manual inspections and every other withdrawal request is fully automated. If you have a rock solid, hack-free casino you can do this too. Otherwise you'll have to manually check almost every withdrawal request which is going to frustrate the players and then naturally they will leave this casino.
That's right. The speed of withdrawals also matters. Due to the fact that we gamble on crypto gambling sites, we are used to withdrawals being processed in a short period of time, so any delay could be a cause for concern or an unnecessary panic, and that is definitely not a good situation to find yourself in. After all, crypto gambling sites are a business, too, so they do not want customers leaving due to certain concerns. So you want to make the withdrawals fast, right?
By the way, when a casino puts restrictions on withdrawing money from your account, that means you are at their mercy, and therefore no longer in control. You no longer have the option to use your money whenever you want and how you want it. And freedom of choice is a key factor when it comes to something as important as money.