Which innovative retail strategy did Celestron introduce in 2002 that revolutionized telescope marketing with their 'NexStar' series?

In the competitive world of astronomy equipment, companies have employed various marketing and product innovation strategies to stand out. This poll tests your knowledge about a significant marketing breakthrough in telescope technology that changed how amateur astronomers shop for equipment. While telescopes have existed for centuries, the modern retail approach to selling them underwent a dramatic shift with one company's innovative strategy in the early 2000s.

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The 'Stars in Stores' program, allowing in-store nighttime viewing demonstrations at major retailers
The 'GoTo' computerized mount system with bundled star database, marketed as 'The Sky in a Box'
The 'AstroSubscribe' monthly payment plan that made premium telescopes accessible to amateur astronomers
The 'Cosmic Guarantee' - a lifetime warranty with free annual maintenance for all telescope components