Am fully aware that bustadice offers investment opportunity for investors who wants more profit apart from participating in gambling. And I believe that there are a lot of gambling site out their that offers the same investment opportunity for investors.
Bustadice and Bustabit are one of the best gambling sites that I played. I also invest some of my money in Bustabit last year and got pretty much profit from it. I did not regret investing early in bustabit. 
despite some problems with a bug that hit them for some copious amounts of coins
admins made sure the investors didn't lose a penny and reimbursed everything from their own pockets
this was handled in the most exemplary manner possible