Most of the people here have the same thoughts as you , people are looking for it , but no one has found .
I have found it! Bitcoin poker at SwCPoker!! PM me if you would like some guides for strategy, etc.
Also you can use your skills to crush the live competition as well (although unfortunately you can only play for fiat at brick & mortar casinos at the moment).
But also dothebeats posted the other 3 that are legitimate. As others have said, with any other form of gambling other than poker, its very likely you will eventually lose it all. Bitcoin investments are also far too risky, especially now that AM has gone down.