Word. And in those 20+ years, who knows what else will happen? Earlier on in the 20th century, could anyone have predicted or even imagined the movie boom to come? Many young fans have been minted in recent years, and in light of the many of them with an inclination towards art... like my little nephew who asked for Darth Vader comics this X-Mas... I just feel this market is unpredictable for the long-term, esp. given Disney's desire to keep alive its flagships in whatever ways possible (some of those unknown to us, even possibly uninvented, in 2021).
As sports cards are rooted to an enduring game that continues to evolve -- in marketing and markets, to boot -- superheroes (and OA) are rooted to comics, which also continue to evolve. Long-term viabilty certainly isn't guaranteed, but the combination of images and words on sequential pages (or a screen) continues be an enduring medium for humans. : )