That's just glib. People use lots of bitcoins on silk road every day with no interest in speculation. Bitcoins are a real currency with value backed by the interest in silk road products.
If you can only look at bitcoins from the viewpoint of turning a quick buck, then you are not able to see a substantial part of the elephant.
If you can only look at bitcoins from the viewpoint of turning a quick buck, then you are not able to see a substantial part of the elephant.