I think that 'some' real revenue probably dwarves most industries tenfold. Look at what something like Candy Crush makes in IAP, the top 5 players could probabl

I think that 'some' real revenue probably dwarves most industries tenfold. Look at what something like Candy Crush makes in IAP, the top 5 players could probably support the entire ad industry themselves in perpetuity without breaking stride.