As a little side note, I learned something really interesting about economics by opening the first Bitcoin casino... I learned that people gamble when the currency loses value (or in other words, inflates). It may seem obvious, but it wasn't obvious to me at the beginning. I used to be terrified that Bitcoin would go down because our holdings would lose value. But I realized pretty soon that that's exactly when people gamble their coins.
If you look at the profit on just-dice.com and compare it with the profit at doge-dice.com, you will notice the same trend: doge-dice is more profitable, probably because people care less.