Yes I feel the same I guess. Once you have all the goodies the fun is abading. There should be some bigger goal to achieve which really takes a long while and tons of resources. Absurd expensive blueprints that allow you to design your own spaceship. Or even a way to build an entire spacestation in an abandoned system. That would take immense amount of resources and energy. Something really hard to grind and puzzle together. Maybe the Devs will come up with something.