Yeah,bitcoin has high risk factor and also high profit rate,but who knows what is gonna happen in future so its better to invest half of your savings into bitcoins as just buy and keep it in long term.But surely the bitcoin is gonna be very very valuable in future and it is gonna make us rich soon.While we saw the statistics of bitcoin the growth rate is in increasing pace always when the demand gets higher still many people don't knows about bitcoin surely the price will be in peak while everyone uses digital currency.I hope the in the year 2040 digital currency will gonna be important in our life.So don't worry bitcoin will gives us good reap in future.