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GPL is about licencing, that is what the L stands for.
GPL is a copyright license, not a sales license. I already warned another person here about mixing the two and you are making the same mistake. Sales laws != copyright laws.
I was using books and cds as an example of a purchase with additional restrictions. If I buy bread, I can photocopy it. If I buy a book, I can't photocopy it. You have different rights depending on what you buy.
Actually yes, you can photocopy it. There is nothing illegal with that. It is perfectly fine and legal to do for your own use. You can't however spread those photocopies to others without permission, that's where copyright law steps in.
I really, really wish you people would educate yourselves on copyright, sales and contract laws before claiming things. I am sickeningly tired of seeing the same mistaken claims being made all the time.