It bugged me 20 years ago as a kid. I just wanted more stuff like Rock Raiders.
"They're miners... in space! They mine green Energy Crystals!" That's all you need. There was a K'nex mining set about the same time. Good stuff.
Then I realized that most of the catalog was like, Lego Harry Potter. Yeah, I really am complaining about what everyone else buys. I was up to my nose in Harry Potter merch already, I owned all 7 books. I wanted more Rock Raiders and Insectoids.