Benson Arizona has a wiki page.
In it it mentions both dark star and this other:
Media references

    * "Benson, Arizona" is the name of the theme song to the movie Dark Star.
    * In a tip of the hat to Dark Star, the Avengers crossover story Operation: Galactic Storm, which is about a war between alien races, commences in Benson.
    * "Benton, Arizona" is the fictitious Arizona town that Humphrey Bogart's character, Vincent Parry, transits by bus on his way to Peru through Mexico in the 1947 Bogart & Bacall film Dark Passage. In reality, this would have been "Benson, Arizona".

        Wikimedia Commons has media related to: Benson, Arizona

This might or might not have some bearing on it being mentioned in a somg, It might have just scanned right. Or someone might have been from this town. I have passed thru it, and talked to a young clerk who was surprised that that his town was famous.
Sean