I would assume e-book orders will also play a role in encouraging the publisher to print more physical copies, because it indicates that more people are interested in reading the book.
Yep! This is the first time I’m hearing the claim that hardcover matters more for bestseller lists; but I do believe hardcover preorders matter a bit more than audiobook preorders (which matters a bit more than ebook preorders). I was assuming the mechanism for this is that they provide different amounts of evidence about print demand, and thereby influence the print run a bit differently. AFAIK all the options are solidly great, though; mostly I’d pick the one(s) that you actually want the most.
I would assume e-book orders will also play a role in encouraging the publisher to print more physical copies, because it indicates that more people are interested in reading the book.
Yep! This is the first time I’m hearing the claim that hardcover matters more for bestseller lists; but I do believe hardcover preorders matter a bit more than audiobook preorders (which matters a bit more than ebook preorders). I was assuming the mechanism for this is that they provide different amounts of evidence about print demand, and thereby influence the print run a bit differently. AFAIK all the options are solidly great, though; mostly I’d pick the one(s) that you actually want the most.