One thing that restricts the achieved prices in Ebay is the refusal of a seller to ship items internationally or to not even ship the items (i.e. if the computer is pick-up only).
So, as a seller, offer international shipping if you want to achieve the highest possible price.
As a seller, look for pick-up only items in your area or ask a friend in the corresponding country to receive the packet and send it to you. Do not forget the customs fees when crossing country borders.
Rare & Old Computers 