Is that what the goal is? I've had so many goals that I didn't realize were intermediate goals until afterwards.
I was thinking the ultimate goal would be to find the edge of the map and wall everything off.
(I still haven't met my goal of really understanding rail signals)
I also wonder if there isn't more in store. For example, I don't see what paving and reinforced concrete floors are for. Will there be wheeled robots, or (sigh) burrowing beasts that can go under walls?
The scaling up is so fun. When you launch your first rocket, that's just the start.
The goal is to build an enormous base, to try and launch a rocket every minute or even faster.
It requires elaborate multi-lane train/rails networks to sustain a base like that and it is awesome.
But you can build your bases any way you like and use any technology you want.