Because of 23andme he found out early that he has a high chance of getting parkinson's disease. He now has the chance to prevent (or at least prepare for) it.
Convincing a lot of very wealthy people (and their families) to get genetic testing could see significant funding directed toward disease prevention and treatment research.
I found a few things to watch out for by using the service. I have yearly checkups with my doctor now to test for a few things I specifically found out about from 23andme. Definitely value the service.
http://too.blogspot.com/2008/09/lrrk2.html
Because of 23andme he found out early that he has a high chance of getting parkinson's disease. He now has the chance to prevent (or at least prepare for) it.