Since bitcoins are actually more liquid than cash you get the result that when an exchange loses the public trust the price there goes up. I can't think of another asset in the modern economy for which this is true -- normally when trust disappears, cash flees first and prices go down.
This is not so unusual. To much money leads to inflation. On Gox there is too much money because people can not (easy) withdraw the money.
I expect the price will fall in the long term because many people pull their money out of Bitcoin. Look at the order book on Bitstamp. It is almost always as good as empty. Everyone now praises Bitstamp. But People use Bitstamp only for cash out. Currently almost no trading takes place. Nowhere. People only want to withdrawals as fast as possible. The trade is limited to the arbitrage between Gox and Bitstamp. Some people use it, but not many.