Or just make mining in general a more logical even mechanic, not just based around VO motherlode-->motherlode-->motherlode?Make void opels much harder to find, but keep the pay outs rich as they are now for mother loads... but also develope mechanics for other aspects of gameplay which can also make them better earners (although not so much.. if its the only activity you persue in game). So it forces people to diversify how they play Elite and therefore broaden their experiance.
There was the chance for FD to do that during design and internal testing, but something seemingly happened
ie: I should be able to scout around and surely find a Palladium Hotspot that's worth my time from a CR point of view compared to mining income in general? ie: Where I can use the PWA to get a good income via Surface, Subsurface, and I'm lucky enough a couple of motherlodes? And then, once the Hotspot has been depleted enough, I should need to go and find another location...? [With the Hotspot in question taking weeks to get back upto 100% reserves]
Consider with that, then the odd Gold Rush being induced by the BGS or via a CG by offering a 10-50% price hike on something? Or FD sprinkling some particularly rich Hotspots across a region, where the dice are even more skewed in favour of finding what you're looking for. And these naturally deplete down to nothing and are then gone forever!