It's not just that.  Low volume is an indication that the actual Bitcoin economy isn't running.  The only activity I see on the depth window are the last remaining trading bots.  I mean, how is someone supposed to get a few bucks into MtGox to buy something on SilkRoad or wherever?  The Bitcoin price went from being 99% speculation, to being 99.999% speculation.  I'd love to know how SilkRoad sales have been impacted with the closure of LR, MtGox-Dwolla, etc...  At this rate, it's a long long way down...