I see peoples gave many options to increase and plenty from them own experiences how to increase your BTC ... but frankly,  that option about investment in casino or any other gambling system I was considered always as very risky with more chances to lose than to get a substantial profit. The ways of "tricks" are also not my ways not only from ethic reasons but all might be easily detectable. Always better is honest work, constantly and persistent one, I not trust in money did over night. To post is maybe a not attractive path for those guys who think to become rich in one day, but for others can be a stable source of suplimentary income.