Re: Let's see if I undertand this. (and possible startegy tip)
If I have upgraded a Robonaut to it's black side.
And I then decommission said Robonaut to make a ET factory (with a refinery of course)
I believe the card would go back to my hand black side up. But I would need to produce the card at the appropriate ET factory again, rather than boost it up to LEO from my hand.
So it seems to me it would be advantageous to have a white robonaut card available for trips to make factories.
If you built a black card, you can always build it again at the same factory that built it. Alternately, if your new factory has the same spectral class as the old one, you can rebuild it there as well. If your robonaut and refinery are both from the same spectral class, you can use your refinery to rebuild both of them and keep going from there!
That means you don't have to return to LEO for more components, which is usually a hassle.