Just to correct you about roulette. Maximum win per field is 50 ETH, but you can win more than 50 ETH in a single round if you f.e. bet on RED + Number 23, those are two fields and your max win will be 100 ETH.
OK, I didn't find that in the FAQ, it just says you can bet between 0.0002 ETH and 70 ETH. What's the maximum for Bitcoin (just in case I ever run into it

)?
70 eth for the max bet? Are for sure because what I played is basically 7.8 eth at the most highest payout for dice game, I do not know about other games, it must be definitely the same payout. But with such site having 70 eth max payout this mean they got pretty huge bankroll or invested. And if you are curious about the investment, I can tell you the last time I see is around 5.8k eth invested there but giving max 7++ eth payout