AbdulAlhazred
Legend
You will when some yahoo has gone through the book in the store and written down the code from the book you bought and it is now useless to you.
Of course they can seal the books - preventing people from browsing them and upping the production costs. This works for software as the packaging is hard to break into unnoticed in a store. It still happens though.
Yeah, and you MIGHT argue that YOU own the book and not that other guy the FIRST time you cash one of those in. The 2nd time you're account is history. This is a non-issue. A couple people will get busted and have their accounts deleted (there go all your characters you saved there etc). The system would work pretty well and no special precautions are needed. A few CS guys will have to deal with the hassle now and then but pretty soon people will learn not to try to cheat.