Well, I have to say that I have mixed feelings about the whole "must sell one with the other" but I do understand why they are doing it.
Even when Apple was allowing Mac clones, there were about a half dozen or so clone vendors, and they all had to sell a copy of MacOS with thier hardware. It was part of the licensing agreement.
The only thing I have a concern about is this: If you have a board that is just out of warranty and it dies; You want to buy a replacement board to put back into the same machine. Should you also incur the cost of the OS yet again? I don't think so. There will have to be a way of tracking registered users so that this will not happen.
I still will not sign a petition against the licensing.