You can make alot of money with a Bitcoin gambling site. TONS of money but you need experience, capital, patience, and creativity.
You can't open up another dice site, there are way too many of them out there. You need a special creative idea and you will make TONS of money.
Don't forget luck. Once you made the whole thing Bitcoin may cease to exist.
I've also seen businesses being destroyed by competition even though they were creative.
In business not all probability depends on luck. But for some reason, yes. (such as destiny, fate, fortune, etc)
And about bitcoin will cease to exist, they also had possibility to be more expensive in future. Btw, i like to use bitcoin as my payments method.