having worked doing produce sorting ( http://www.compacsort.com/ http://www.compacsort.com/ ) A lot of the cost is the mechanical system. for the very simples

having worked doing produce sorting ( http://www.compacsort.com/ http://www.compacsort.com/ ) A lot of the cost is the mechanical system. for the very simplest / slow kind of sorting they are doing, computer/vision wise you don't really need too much.