Plus, much of the tech they developed for it has gone into other products - spatial audio being the prime example.
Point of comparison: Steve Jobs started talking about the iPhone when someone asked him about the next big thing at the Macintosh premier in 1984. 10 years later, he was fired from Apple and working on bespoke workstations. 20 years later, Palm/Blackberry owned the smartphone market. 30 years later, Apple owned the smartphone market. These stories take time.