Upload & Sell: Off
^ First I'd be hesitant to call it greed. It's capitalism! You get a good deal on a body, someone gets a good deal on a lens. Everyone's happy.
^ Second, even if the surplus gets pretty intense, I doubt this lens ever sells for $500 or less. Even if it does bottom out at $500, that's putting the 6D at $2000 or so, which is the base price anyway (and one still got the other items).