Bitcoin has become nearly unusable yesterday when it hit over 200000 unconfirmed transactions.
I suggest Megadice considers an altcoin like ETH or LTC as soon as the Lightning network is enabled.
Both ETH and LTC have faster TX and can be traded for fiat currency.
That's a great advice by you. I will suggest dogecoin too. All of this is possible with a good dev team. As it will take alot of time and effort to fix bugs.