SableWyvern
Hero
poilbrun said:
As far as WotC is concerned, a DM who buys a Player's Handbook and lends it to his players so that they can make characters is even more of a thief than I am (not really true as the SRD exists, replace Player's Handbook by Tome & Blood). Heck, if you want to go that far, you could even say that a DM who buys the FRCS and plays with players who do not have the book is damaging WotC's IP : after all, he uses terms that are trademarked by WotC without their consent.
Copying one of these books so that a player has a copy is illegal. Lending them the actual book is not. It is yours to do with what you will, including giving or selling it to others. Once it is sold, WotC have no claim whatsoever to the physical material that makes up the book, nor who reads it. Only the ideas contained within are theirs, and cannot be distributed in a format other than one allowed by them.