I'm currently working on the turning controls and I've been thinking about how to implement the asteroid damage on contact. It would make perfect sense, I'm just scared it could end up limiting the gameplay options. I already made a functional Store where you can sell your ore, but I'm yet to implement upgrades (which I agree that are what will bring purpose).
I'm super new to all of this so every new idea and input is super important to me! So thank you for your comment!