Which market research technique revolutionized telescope manufacturing in the 2010s by allowing companies to gather real-time user experience data?

The astronomy industry has undergone significant transformations in how companies gather customer insights. From traditional surveys to cutting-edge methods, market research in astronomy has evolved to meet the needs of both professional astronomers and amateur stargazers. This poll tests your knowledge about a pivotal market research innovation that changed how astronomy product manufacturers understand their customers' needs.

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Embedded telemetry systems that anonymously transmit usage patterns and feature utilization data to manufacturers
Annual mail-in warranty cards with detailed questionnaires about user preferences
Focus groups conducted at major astronomy conventions and star parties
Social media sentiment analysis of astronomy forums and discussion groups