If i had 10 BTC definitely will play on gambling site to make it double within few hours because it is best way to spend bitcoins there, so i would like to get 10 BTC for gambling and it is really profitable for me to make some profit.
Yes, i m also using the gambling that is really profitable, sometime it will give you loss, but i realize if you win one time so you should left it in time. And after 2 or 3 days than play again gambling if you play the gambling continuously, when mostly you loss, and than people say it is addictive thing because we can't stop us.