I can send 200 lambs on a truck to the abattoir and get £4.20/kg at the moment ---that's £88.20 for a 21kg lamb
transport paid for---no hassle
So if I take a few in to kill I want money for transport (£1/mile each way) , money for time to sort/catch etc---+the cost of butcher & packaging + delivery in some cases
All in all £70 for 1/2 a lamb is cheap---at the moment I charge £75 & £150---same for mutton , with mutton you get a lot more meat