Gambling Altcoins is better currently because of the lie transaction fees and faster confirmations but we have to be prepared to pay something extra if we want to exchange them for bitcoins and that's where a pot of people stutter.
One of the biggest costs in a normal online casino is the payment processing costs, every time a player makes a deposit using an e-wallet, bank account or credit card, theres a fee that the casino has to pay and casinos usually compensate for some of those costs through reduced odds or bonuses for their players. But with bitcoin, deposits and withdrawals are free, so payment processing costs for bitcoin casinos are non-existent.