Hi, thanks for playing!
I find if pretty funny that people liked the aesthetic; I've got no drawing talent, so I just got some squares, rotated and scaled them, then made them lighter/darker based on the layer, but I am glad they did the job :)
Yes, that was the original intention, for the money to be carried over, however I decided to leave it out simply because of balance concerns. Because I didn't have enough time to fine tune the cost and spawn rate of everything, and so I envisioned a scenario where, after evacuating a few planets, the player would either be hemorrhaging money, or would have so much that they could easily afford everything from the get-go. This way, while not as rewarding, I could at least put a cap on how much the game would get unbalanced, before being restored to neutral.
But rest assured that after the balancing update (v1.1), I will be adding it into the game :)
Thanks again for the feedback! I'm glad you've liked playing it :D