Is not it now proven that holding bitcoin for a long time can be profitable. It's possible that when you hold the bitcoin right now, you can see the bitcoin price to $ 2500 by 2018. well, that would be very profitable, especially if you have bitcoin since 2013.
Indeed, the preservation of Bitcoin since the times of business development has greatly affected the financial well-being of the user of the crypto currency. Video Does it compare all the jumps and drops in the price of Bitcoin to price increases not to notice very difficult over the past few years.