I imagine the amount of stuff floating around up there is so vast, once you can build all the heavy, bulky parts of a propulsion system in space, produce fuel i

I imagine the amount of stuff floating around up there is so vast, once you can build all the heavy, bulky parts of a propulsion system in space, produce fuel in space, and automate the mining, you could truck absurd amounts of all kinds of raw materials to Earth, easily more than you could realistically use in orbit short-term. But I guess people could be made to pay a pretty penny for Space Gold accessories – or space diamond, space platin, space whatever. Say, an Apple Watch milled from a solid chunk of Space Platin or even Space Diamond, I think that might sell pretty well. As to getting the stuff down, I imagine one could do that relatively low-tech; cut it into manageable chunks, wrap those in some kind of simple heat shielding, deorbit to some remote place and have some kind of parachute system slow it down enough to not disintegrate on impact; a chunk of solid gold should be able to take quite a beating.