Always interesting to get your perspective and experience.
As you point out, writing and publishing what’s written is a business and must make money to stay around. Supply and demand. As for new stories about old characters by new writers, as long as there is sufficient demand for new stories, publishers will pump out the books. The thing that you mention that I find sort of disturbing is the negativity you mention from some people. If we don’t like the new stories by new writers, we don’t have to buy the books. Getting upset at a new writer is just a waste of energy. I mention Vanlustbader writing new Bourne books. I find it interesting that he has written more Bourne books than Ludlum. Must be a considerable amount of demand there.

It’s interesting that you mention “Haunted Mesa”. I thought “Haunted Mesa” seemed lacking in some quality. Not sure what. Maybe nothing. May just be me. I thought maybe your dad just struggled with stories in a more modern setting. But, then I recall the short story “With These Hands” and the novel “Last of the Breed”. I thought both were really excellent.

Justintime