i think that because the value of Bitcoin fluctuates so regularly, its risk factor is very high. Bitcoin has been compared to a classic market bubble chart, 75 Currency Research would argue that it is not suitable as a stored value cash replacement, but perhaps should rather be approached as a casino-style gamble. Bitcoin is not money in and of itself. The bitcoin price is essentially the price of transferring already existent fiat currency or, in another sense, it is simply a non-binding claim to standard money. Since the value of bitcoins are not in their usage as standard money but in their usage in transactions, bitcoins are only as good as the fiat currencies in which they can be sold.