There are many non risky investment method are available in the bitcoin. You can invest on crowd funding, construct the site with bitcoin payment options, trading, lending and etc..
Don't try on gambling, you may loose the all your funding.
Yes gambling is not good for the future, and gambling is not right solution to earn income from bitcoin.
Because I think there is still a good business to earn income from bitcoin like trading, investment, and signature this forum.
playing gambling is not the best choice to increase btc and its only decrease and more over we can loss all of our bitcoin. i am agree with your suggestion because by doing this, we can increase although its not so fast, at least we can increase from small amount and in one day, the amount will be bigger than before.