From my point of view why they are not efficient is because of these tax subsidies,when these people are given help from the govt they could keep a huge profit margin,so even if they sell small numbers they would still make a profit.As a result unlike other importers who try to compete with other services in order to increase units sold,Micro would not want to,as they have a huge profit margin,and they could cover up their costs and still make a profit.This is just my thought.