When the value of a $20,000 USD car goes from 2 BTC to 1 BTC in a month, you can be damned sure I will call foul on the BTC. After all, until the BTC becomes the base unit of currency for the world, all 21 million of them, it will be worth nothing on it's own. Only against the USD.
Until the power goes out, or the exchange gets hacked and 1,000 BTC get stolen. And then?
It's the fact that you can't value it against what we normally pay for, that gives BTC potential.
This is the reason why, it is on a hyperbolic trend and might not retrace to the abyss... it probably shouldn't even be analysed on chart or fundamentally like any other asset. It is a disruptive, different and attractive form of exchange, we call them currencies but they really are not. Probably BTC it's not even the best of them.