That seems like a logical argument against. However, I’ve always thought that there must have been more to his massive accumulation and long runs of books than just the reference material explanation. It just seems like far too much to acquire for that purpose alone. Maybe it was, but it just seems unlikely. I think most accept it, but if I needed to reference say, Bob Kane’s Batman, style, I could probably get everything I would need from a few issues.
All that being said, I think you changed my mind on him for consideration.