don't know if someone's already said this, but investing in popular dice sites with bitcoin may be a great idea; youll contribute to the site's bankroll and be paid a comission of the site''s winnings for it. he dice site in my signature, dadice, is pretty popular and offers an easy to use investing option.
What are the stats on the bankroll?
Average daily volume?
How much commission does the site get?
If you really want to invest in a casino, use just-dice because is the most trusted, you need CLAMS tho. But investing in a casino is risky aswell and you can end up with negative profit just as easy