If it was a typical nickel-iron asteroid, it could contain between 5% to 30% nickel. Assuming the lowest value - 5% - then it would contain US$1,637,550,000 worth of nickel at current prices. The remaining 95% mass in iron would be worth US$8,208,000,000.

I wonder what would be entailed in getting Apophis to enter a low orbit, such that it could be conveniently 'mined'? I imagine something like a first mission in 2029 to set up for the capture, perhaps planting propulsion units etc. Then upon the return in 2036, it could be 'nudged' into the appropriate orbit.

Is this even feasible?