Nope, it wouldn't take a whole lot to get the numbers to start going down (compared to other currencies).
But without derivatives markets is it not difficult to get the price going down without already holding bitcoin? Or are there BTC futures & shorting yet?
By one measure BTC is one of the strongest currencies - it is probably one with the least monetary inflation in the near future. It remains to be seen if it will retain its buying power though and thats whats important to most of us.