I know why it was done. It was done to prevent interesting techniques in Null from distorting gameplay. However, since quantum cores came online, structures have all but disappeared in hisec.
First, the small POS. In the good ol’ days, a solo indy player could set one up and do BPO research, invetion, etc., for $240m or thereabouts, then take the thing down in an hour and put it in a box.
Adding the citadels made this harder. OK, fine. But the quantum cores made it harder by a quantum jump. Suddenly, a wardec is GUARANTEED to pay 6-800b in loot.
How about different quantum cores for different security status? Full price (or even twice the price) for nulsec gazillionaires, but 1/10th for hisec carebear types. I mean, it makes sense - the quantum communication systems would have to be more robust in no-man’s land than in hisec where CONCORD keeps a lid on things, right?
Astrahus: 60m hisec, 300m lowsec, 600m null. Or, 60m hisec, 600m low, 6b null. In hisec, losing a moduled Astrahus will set a solo player back 1b or more, anyway, with , what, 200m in salvage for the attacker? So, the grid craziness gets dampened without nerfing hisec industry fun.