Bitcoin price volatility over past 1 week ,1 month , 3 months shows that its being traded more like a speculative investment than a currency.
Check the charts at coindesk.com/price
Why Bitcoin may die but the tech lives on
http://www.forbes.com/sites/kitconews/2014/03/20/bitcoin-may-die-but-the-technology-could-survive-jim-rickards/