We need to stop saying BTC is worth 8 USD (or whatever the current price is for exchange).
This is why BTC is unstable.
BTC should be worth whatever the buyer/seller wants to trade them for.
I Agree, untill we can define BTC as own Currency it will be just a speculation. BTC it's the perfect global indipendent currency. More Exchange we have in the globe and soon we see BTC worth it as own value!