Which product development innovation most significantly contributed to the mainstream popularity of amateur astronomy telescopes in the early 2000s?

The astronomy retail market has evolved dramatically in recent decades, transforming telescopes from specialist scientific equipment to consumer products. This transformation involved significant product development innovations, marketing strategies, and shifts in customer engagement. Test your knowledge about how telescope manufacturers revolutionized their product development and marketing approaches to reach broader audiences.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Introduction of GoTo computerized mounts with GPS and automated star-finding technology
Development of ultra-lightweight carbon fiber telescope tubes
Implementation of subscription-based star chart services
Introduction of interchangeable colored filters for aesthetic viewing