Winklevoss brothers invested $11 million when 1 bitcoin is amounted to around $120. An now it soared to over $10,000, that investment could be something.
I heard a story of a unlucky Irish person who wasted his 7500 Bitcoin when it's price was below 1 Dollar. He couldn't believe that Bitcoin has any spirit but in recent time he regrets a lot. You know how much unlucky he is...
So in every platform, there is both positive and frustrating story. So far I know a lot of people have earned huge money through this platform. Someone maybe a billionaire also...