As HaiGan says, it depends on the license agreement. In the case of Poser products bought through Renderosity, the license agreement is clear: "Buyer is hereby granted a non-exclusive, non-transferable license to use all of the contents of the encapsulating archive file." Notice that word, "non-transferable"? That means you can't give away or sell your license to use the item. I don't have a copy of the DAZ license agreement handy, but I'll bet it says something similar. I'm not sure how the other stores handle it.

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