Back in the '90s I feel like more fans cared about the history and making of these movies, especially the earlier ones. And it justified Ed taking the time to create entire issues of Japanese Giants based on one film, or writing a book like the Illustrated Encyclopedia.
Nowadays I find the fans don't hold the older films to same standard as people once did, and seem primarily concerned with power levels, fantasy fights, comic books and roleplay. And the more time goes on the more I see people really slam the older films, while putting more recent, mediocre films on a pedestal.
I know I wouldn't want to bother spending much time on future projects if I was Ed.