Allen, in all fairness, I worked at the shop he is referring to. I enquired about takeoffs, like when we swapped stems on a new bike, and was told that the takeoff could not be sold, for the reason mentioned above.
As far as the cheque/EFTPOS issue, I was under the impression that it may have to do as much with trust as technology. But that's for a separate thread.
Newcastle is a great place, (go The Knights!) but most shops would have to know the buyer before they would trust them.