Random question (but possibly relevant) Where is the buyer from? In certain countries (Canada for example) as I found out, this is actually quite normal. Part of buying the house was that we got all of the white goods (nearly brand new washer & dryer, the cooker, dishwasher) as part of the house sale. Anything they intended to take had to be specifically listed on the sale documents. As it was they were leaving the country so we got everything. I asked the realtor and he said this is normal here.
More relevant, my friend is just buying a house in the UK and she was offered various things in the house, some white goods and fittings (curtains, beds and dressers) at a low price, i presume to save the previous owners moving the stuff out for some reason.