British Lamb should not cost more

            A few days ago there were articles in the press accusing most of our supermarkets of not stocking British Lamb. It would seem that British lamb is too expensive and the supermarkets import cheap foreign stuff. We Brits always like to buy the cheapest!
           However - what I don't understand is this. How is it possible for lamb from other countries to cost less than our own lamb? I mean sheep are all over the place. Our croft house in Sutherland is surrounded by them. They can exist and thrive anywhere even in the MAMBA country of the Scottish North (MAMBA = miles and miles of b*****r all). They don't require much input, although the lambing season is a time of sleep deprivation for farmers.  They manage to grow and get fat by endlessly consuming free stuff such as grass and heather (and any plants or trees that we foolishly try to grow).
          So - how do they become more expensive than foreign lamb, that has to be transported miles to get here from another country.  It is crazy.  But at least it is not horse.