Which retail innovation is credited with increasing amateur astronomy participation by over 40% in the 1990s and revolutionizing how astronomical products were marketed to consumers?

The astronomy retail sector has evolved dramatically in recent decades, with technological advances changing how consumers interact with the cosmos. From humble beginnings of basic telescopes to today's sophisticated digital star-tracking devices, the industry has transformed how people experience the night sky. This trivia question explores a pivotal retail innovation that revolutionized consumer astronomy and dramatically expanded the market for astronomical products.

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The introduction of computerized 'Go-To' telescope mounts that automatically located celestial objects
The launch of astronomy-themed shopping mall stores with interactive displays
The creation of astronomy club membership packages with monthly product subscriptions
The development of inflatable planetariums for home use