I remember Litecoin was used for that
Dogecoin was good too for moving wealth to and from exchanges, but not every major exchange out there (think Bitfinex here) accepted it (for example, Bitfinex still doesn't accept it despite a lot of shitcoins that they do). It would be good to see Litecoin added to Roobet.com too as it is also widespread, relatively cheap (both in terms of price and transaction costs) and fast as far as confirmation times are concerned. Most other casinos have it as well. Not sure why they don't add more coins
Yeah, Litecoin was the proper coin to do that for sure, but there were a lot more doge players too, because people just loved giving out doges as tips or rewards (since it was either so cheap or the guys mining it were mining so much), so by virtue of lots of giving away, there were lots of owners, and they felt compelled to just exchange out to doge.
I was one of them, got a huge tip of doge more than any btc I ever owned at the time.