Farm Shops -what should they sell

Yesterday I received an interesting piece of research from Speciality Food Magazine's news alert. Farm shops - according to the Scottish Agricultural Organisation Society - are growing at 15 to 20% over the past year, the fastest rise of all sectors. Now I suspected this to be true if for no other reason than farm shops are one of the highly searched for terms on my website http://www.foodloversbritain.com/ and of course I'm jolly pleased. But it does raise the question - What is a farm shop? Is it just a shop on a farm (in other words it could be anywhere) or must it offer some connection to the land and sell produce from that farm? Sometimes when I visit a farm shop it has nothing to do with where it is, it could be anywhere - in fact no difference from a corner shop, it just happens to be on a farm. This I think isnt on - our expectations are that a farm shop should offer own produce, then some local and some from the area - otherwise why bother. What do you think? Is it important? And when you come across these farm shops do they put you off the real thing?