Adult toy collectors are mostly deranged perverts, and the toys the industry generates for these perverts are fr the most part debased... I used to sell this shit for a living in a comic book store.
They got troubles.
Children's toys from children's toy stores are sweet and innocent and this market should be about ten thousand times larger at least, from what you're going to find in a specialty shop...
I remember seeing Star Trek toys in the toys shops back int he 80s for about 5 minutes.
Compared to GI Joe and Transformers, who just won't die, Star Trek is a drop int he bucket.