That's the blessing and the curse of this...   if everyone keeps hording them and not spending them on stuff.. it's not a currency it's a speculator market ....  if people start spending them then of course it becomes a currency.

It's up to the bitcoin community on how it proceeds....    in my opinion it needs to turn into a useful currency or else it becomes tulip mania.

http://en.wikipedia.org/wiki/Tulip_mania