Which innovative marketing strategy did Celestron implement in 2012 that revolutionized how amateur astronomy equipment was sold?

The astronomy retail market has undergone significant transformations in recent decades. From traditional telescopes to advanced digital planetariums, companies have employed various marketing strategies to capture consumer interest in the cosmos. This trivia question explores how one major astronomy product manufacturer revolutionized their marketing approach in the early 2010s, changing how amateur astronomers engage with their products.

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The 'StarSense' augmented reality app that allowed customers to preview how telescopes would work in their specific location before purchase
The 'Cosmos Loyalty' program that gave customers access to exclusive viewing events based on equipment purchases
The 'Telescope Trade-Up' program that let customers upgrade their equipment at discounted rates as their astronomy skills improved
The 'Celestial Subscription' service that delivered seasonal astronomy equipment and viewing guides on a quarterly basis