Are you the type who can risk 1BTC for 1 satoshi? Maximum you can get is 0.001 which have a huge risk of busting before that. Once, I used 0.01BTC to win 0.07BTC. And you know what happened almost immediately after I started my 9th round with 0.02? Bust within minutes, with the same odds, same amount of starting bet and increased bankroll. It can bust within a few minutes after you start the game, imagine how long it takes to earn 0.001
Well couldn't you say that about all gambling? Are you willing to risk 1btc for 1 btc, 0.10 for 0.30 etc. People try use the Martingale and start off with small amounts because they think it's less of a risk, and in the short term it usually is, but it's knowing when to quit/cash out.