Bitcoin is a virtual currency that fluctuates it's value every single day. So, people all over the world are doing gambling with it. Millions of people bought Bitcoin and still making a profit from it. Some are becoming the millionaire. So, how much advantage you want from bitcoin? It's making people profitable. Its price is increasing day by day. Near January 2018 it will become approximately 10000$. For more information, check www.propthereum.io