IMO, this is exactly why BitCoin hasn't hit primetime yet - volatility. Sure, greater use/adoption might ameliorate this and make it more stable, but it's always going to play second fiddle to the USD or any other mainstream currency for as long as this type of volatility exists.
This is why I "hate" BitCoin, not because I don't see its value once it's massively adopted. Its current rollercoaster trending is making me dizzy.
If youve looked at anything more than a snapshot of a few months, weeks or days in Bitcoin market rate...you would see that overall, in the longterm...it averages out quite nicely and its gone one direction .. up.