Which retail innovation revolutionized the telescope market in the early 2000s, making advanced astronomy more accessible to hobbyists?

The astronomy equipment market has evolved dramatically over the past decades, with telescopes being one of the most significant product categories. From traditional refractors to cutting-edge computerized systems, manufacturers have employed various strategies to capture the attention of both amateur stargazers and serious astronomers. This poll tests your knowledge about an interesting market trend in telescope retail that changed how consumers shop for astronomical equipment.

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Introduction of GoTo computerized mount systems that automatically locate celestial objects
Development of subscription-based telescope rental services with monthly celestial target guides
Launch of modular telescope systems allowing components to be purchased separately over time
Creation of astronomy equipment marketplaces with peer-to-peer used telescope trading