Yeah, but in order to pull that off, they need to dribble the metal slowly enough into the market. Considering that they have significant up-front costs in getting the stuff, and furthermore considering that they have to deal with an economics phenomenon called the time value of money (basically, $100 now is worth more than $100 next year because if you have it now you can earn interest on it for a year), dribbling it into the market like that might just mean that they can never quite recover the value of their initial investment.