Most of this thread has confused me somewhat, none of the OP's complaints are really 'exclusive to eBay', it is across the retail board - Local made competes with Chinese Imports - but I guess it all boils down to one thing:

If Aus workers were willing to take a paycut of over 97%, we could complete with Chinese imports, but I don't see that happenning any time soon, so the Aus sellers provide the best local service they can, and I for one buy local to the best of my ability (and wallet).