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Well, I would say this is an ethical question. The stores sell the Linux-compilations so people who don't have internet (not many in our time, but still) can still have Linux. The CD's of the magazines also bring people who don't have internet things they could use. That's their work, they put all those things together on CD's and perhaps added instructions or manual, so they are in the right there to sell them.
This guy / lady uses the work of others though, the only thing of him there are the instructions and even they are rather work of others than him. So what could he get the money for? For work of others, while doing nothing on his part. <_<