Which innovative marketing strategy did Celestron implement in 2018 that revolutionized telescope sales to beginners?

The astronomy retail sector has evolved dramatically in recent decades, with specialized marketing strategies to reach amateur astronomers, educational institutions, and space enthusiasts. This poll tests your knowledge of how astronomical product companies have positioned themselves in this niche but growing market. Do you know how the stars of astronomy retail have aligned their marketing constellations?

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The 'Celestial Companion' program, offering free online astronomy classes with each entry-level telescope purchase
The 'Stars in Your Hands' campaign, featuring augmented reality previews of night sky views through their telescopes
The 'Telescope Trade-Up' guarantee, allowing customers to upgrade within 3 years and receive 70% of original purchase value
The 'Cosmic Concierge' service, providing personalized star-viewing recommendations based on customer location and interests