Since Sierra Trading is now a shell of it's former self, is there someplace else to get boots with similar deals? In other words has someone else picked up the slack, all the closeout, surplus, 2nds, etc. has to be going somewhere.
Check out backcountry.com, REI.com (outlet), moosejaw.com to name a few.
Many of the technical hiking and camping retailers (online) carry surplus boots for the cheap.