Just a quick thought...
I noticed you are able to de anchor shipyards and move hem to a more optimal position. I think this is a briljant feature since with development and acquiring more/better planets it can be the smart thing to do.
So why this post?
Well simple.....
Why is this feature not integrated into starbases as well??
Starbase influence can be extended via research and then sometimes, it would be clever to change it position so it can service other/more planets.
Also, why is it possible to create an economic starbase which can also research xeno relics, but not one..which can also mine?