The base building in NMS convinced me that I don't want it in E: D. I spent hours building a base too, but in retrospect I don't know why I bothered. Especially as Hello Games then changed pretty much everything in the last update and I had to redo a whole load of stuff (which of course, required new resources that I didn't have, even though I'd stockpiled huge amounts previously).
E: D is about flying spaceships, not building bases. Admittedly, NMS isn't (the flight model is absolutely terrible, so if it is about flying spaceships then they missed that by a wide mark) - it is more about exploration, and base building does seem to fit in more with how they have implemented things.
What Elite needs is a mighty, endless credit sink that rewards the players (not one that just means spending to stay alive) and I think bases / squadron ships will be splendid wastes of credits. If they manage to keep future credit exploits under control, eventually the whales will run out of cash funding their various squadrons' endeavours and the inflation economy might even normalise.
Imagine a base where you could keep all your space suits in a gallery. Build a mighty hangar to house for all your ships and display and keep trophies and trinkets from successfully completed missions and CGs. It would give your commander a sense of history and progression even after triple/quad elite.
Flying is fun but Elite has a similar issue to NMS. It is too wide, too shallow with not enough core gameplay. After NMS 1.3 update, the enjoyable story and missions sounded nice so I just reset my game and started again: I read too many horror stories about bugged materials and missions to want to try and hack it. Still, it's a complete to rebuild the base with the new, nasty crafting system that makes glass hideously tedious to fabricate. Oh, and the Atlas path missions have some game stopping bugs... Currently playing ED and Cities Skylines (to keep my building juices flowing) and giving NMS a rest.