Or a cure for mental illness. Which would put him out of business.
Note to any believer who reads this is wonders why I don't believe him.
For the same reason I don't believe there is a god. I know a scam when I see one.
And just for the record. If I, as an atheist, found a cure for diabetes or any other medical condition, be it cancer or cold sores, it would be available so quick your head would spin. To everyone. And I wouldn't ask a cent for it. Not because I'm an atheist, but because I'm a nice guy.