Amount of money Publishers get from Piracy: 0 (or sometimes negative if it's stolen from their own site costing them bandwidth).
Amount they get from Theft: Negative Cost
Amount of money Publishers get from Used Sales: Full Price of Game Once, then 0 for repetitive sales.
However, money is being transferred in a used game sale, and it's not a complete negative vacuum like Lionhead wants to think. Where does it go? Into the wages of other people who then support gaming, who will buy new (and yes occasionally more used) games, who will drive up demand for gaming, in a way that piracy or theft cannot (new systems, computer hardware, guide books, controllers and other sorts of things). Or, further buy things unrelated to gaming, like other needs or wants, which then leads those people to being capable of buying new games whereas they wouldn't have that money otherwise, etc.
All of which is lost when a company treats legitimate business as theft, or builds around legal business in a way as to make others suffer for their own profit. They either become incapable of buying games (new or used), incensed against the gaming industry seeing the situation as an 'us vs. you' scenario and less likely to buy and support gaming altogether (or pirate said games).
I'll tell you what, Lionhead. Fable 3 sucked, and I sold it because it was garbage. The fact I was able to get some money back meant I was able to buy a different game on the 360, which supported your home platform, and alleviated the stress of having bought a crappy game. That's 60 dollars you still got from me. The net loss was still mine to bare for your shitty fucking game, so you the person that lost money in the transaction was still me.
But I guess next time I know my options, at least the ones you'd want, is and all or nothing gamble on a game that will suck for 60 dollars (a wager I and many like me can't afford in this economy), don't buy your game at all and spend money in a different hobby, or just take the 5 finger discount you don't seem to think effects you as badly.