One of the OXP-dreams Dis.
Varying prices we already have, it's predicting where goods will sell well thats the problem.
There is a thread discussing this stuff someplace, this was when everything was still plist.
With the more flexible scripting of JS, some of these ideas could eventually come to fruition.
Don't worry some people wil eventually work on this idea.
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star-coronas could be scooped too, but star heat was a problem IIRC with huge or hut stars, as well as the gravity of some. So the safest were dwarfstars and gasgiants.
What I liked best were the panets, landing on them and missions on them. Unfortunately mining did not work properly in the official versions. (only later did JJ IIRC fix this mishap)