I loved TOS, but it became obvious how little money they had to make when all the monsters are just some actor in a suit, and when the rocks are shiny and fake.

I loved TOS, but it became obvious how little money they had to make when all the monsters are just some actor in a suit, and when the rocks are shiny and fake. Relying too much on FX can be annoying, but too little FX can also ruin a story.