"In space, a single platinum-rich 500 meter wide asteroid contains about 174 times the yearly world output of platinum, and 1.5 times the known world-reserves of platinum group metals (ruthenium, rhodium, palladium, osmium, iridium, and platinum)." -- Planetary Resources, http://www.planetaryresources.com/asteroids/composition/ (take with as many grains of salt as you feel like)
But hey, I'm sure they can spare a mission to retrieve us some gold sooner or later. :P
With that much/many valuable metals there, there would have to be plenty of gold, too. I have no doubt that gold will be mined and retrieved, because it has industrial value. Not to mention its incredible economic value, and because gold.
But hey, I'm sure they can spare a mission to retrieve us some gold sooner or later. :P