MtGox said they were getting 20,000 new accounts a day recently. By definition, new accounts are not "speculators" putting in trades to manipulate the price, they are people putting in trades to acquire their first bitcoins.
People rushing into a currency, right after the EU forced bank depositors to lose %40-%60 of their money in a state run bank (which was only insolvent because they were forced to buy greek debt by the very same EU) is not "speculation" -- it is seeking a safe haven.
A lot of people hope bitcoin will be a safe haven away from these increasingly manipulated and untrustworthy national currencies.
That's a huge level of success, given the limited expectations for bitcoin only a few years ago.
Suddenly it's actually considered a viable store of value for some segment of the population. Sure, it's a small percentage, but still, it's massive.