If you don't have use of CAD-CAM software, isn't the dongle worth zero even if you get access to the software? Or was the idea that once the company had mailed the disks, he could go out and sell the whole package second hand? While the software probably was utterly expensive to buy, given the prerequisite that you can't sell it second hand, the loss for the company was about the cost for a few floppy disks and an hour of work. They had already at one point sold the software to the previous owner, and the new one wasn't likely to buy it anyway.