Hi! Thank you for your feedback! I agree, it's quite easy to gain a lot of cash. When I was planning the game, the numbers seemed okay, but in practice, there are way too many nodes. However, with fewer nodes, the game felt quite boring. That's how my thought process went.
Oh and almost forgot, I have made an update (quite a bit of polish and fixes), that completes the game with proper UI and story. Feel free to check out the updated version!