This article, the continuation and final part of the feature I had given before shows two different cases where recent cases highlight areas of copyright law that regard international copyright and distribution.
Primarily, the First Sale Doctrine seems to state that anything bought can be resold without any issue… as long as it originated in this country. This proves to create difficulty, as many things from overseas usually would have to be ordered online, if they can. Otherwise, such as the case of a convention, overseas goods could be obtained by dealers who work in buying the goods to resell. However the First Sale Doctrine would essentially declare this illegal.
I have a feeling this law is broken often..
The video game industry is attempting something similar
http://www.forbes.com/sites/insertcoin/2012/03/29/the-coming-war-on-used-games/