RE: Off-topic: Am I wrong here?
A lot of hobby stuff is sold on ebay by people who are just getting rid of things they haven't used, or they bought the estate of a modeler. It has given us access to a tremendous variety of OOP planes, engines, etc. that we could never have gotten otherwise.
Most of us do not have shipping departments, accountants etc. We have to take photos, write descriptions, post them, research postal rates, deal with questions, package and label the items, drive to the post office, stand in line, and hope that it is finally done. If you count your time...and why wouldn't you?...then even if you get some really good prices your hourly rate is not much. If you then have to deal with postal agreements between countries that lost your item, it simply is not worth it.
My conclusion from all this is that I will never sell out of country. I probably wouldn't buy from a seller in another country either.
Jim