drifting parcel
When unlocking new Cores, especially utility cores and higher versions, it can be hard to gauge whether or not you can afford enough of that module to be worth it.
I think it would be nice if the preview screen can be enhanced with the upgrade costs at certain points, or allow to see the upgrade point cost when hovering over core Milestones.
As weapon and shield cores have many milestones I don't think the first option is feasible, but maybe some UI chad can figure something out.
frigid cedar
As weapon and shield cores have many milestones I don't think the first option is feasible I think it's very feisable:
When hovering over the greyed out upgrade, a tooltip could say "A total of 1.4e15 scrap needed to upgrade up to this point" in additon to the upgrade's effect for example.
drifting parcel
with first option I mean showing upgrade costs always, like under the milestone options