Which retail strategy was pioneered by Celestron in 2018 that transformed how astronomy enthusiasts shop for telescopes?

The astronomy retail sector has seen remarkable innovations in how products are marketed and sold to both amateur and professional stargazers. One product launch strategy in particular revolutionized how telescope manufacturers connect with their customer base. Test your knowledge about this significant shift in astronomy retail that changed how enthusiasts discover and purchase their observational equipment.

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Virtual night sky testing rooms where customers could digitally 'test' telescopes on simulated sky conditions before purchase
Subscription-based telescope ownership with automatic upgrades every two years
Astronomy community marketplaces where users could trade equipment directly with manufacturer oversight
AI-powered telescope recommendation engines based on location and viewing preferences