One of these KM-04 mixers sold for less than £1 on Ebay UK a while ago. The seller wanted about a fiver for shipping and I guess most buyers thought the total price wasn't worth it.
I have what seems to be a copy of this mixer (or, more probably, the same made by the same factory, but labelled with another brand name). It's kinda crappy. Well, mine is kinda crappy...