Goodness no. I have no objections at all and am only happy if people decide to buy and read my books in whatever form. One reason I started self-publishing my backlist (though, in the event, I never got past Goblin Moon before Gary wanted to reprint GM and its sequel) was because I wanted my books to be available again, I wanted people to be able to read them, and if that was a few people or a lot that didn't matter so much as the fact that the books would "live" again. And ebooks would be a big part of that, because they can stay in print forever.
As far as self-publishing, or submitting to a small publisher like Tickety Boo, TQN was actually next on my to-do list. I had even written to HarperCollins asking for the rights back, when they surprised me by saying, "No, we're going to reprint it ourselves." After all these years. So another of my books has been granted a second chance at life, and I just want people to know about it. Whether they decide to buy TQN or not, whether they buy it in paper or the ebook eversion, I'm just glad that they will have the opportunity. (As the author, naturally I think it is a splendid book and deserves a second chance, but others have loved it, too.)
Whether HC decides to keep the book in print in paper will depend not only how many books are sold, but how quickly they are sold. That's how publishing works these days. And the fact that the reprint is only showing up intermittently at online bookstores is not helping with that! But whatever happens with the print version, an ebook will have more time to make its mark.
Though HC has plans (but publishers sometimes change their plans, which leaves me a bit edgy), right now there is no ebook, because there were no ebooks when it first came out.* This is a whole new world of possibilities for TQN and everything I wrote before it. If HarperCollins goes through with their plans for TQN to come out in e-books I will be thrilled. And I will be thrilled when people buy those ebooks and read them and (I hope) talk about them. That's the important thing, that the book will be there for people to read. That's why I wrote it, after all.
You are wondering about royalties: the contract amendment says I'll have a larger percentage but since I don't know what the price will be I have no idea whether that will actually be a bigger royalty than the paper version. I won't say I wouldn't like to earn a lot of money from the ebooks, but that's not my first concern.
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* Publishers were asking for electronic rights in those days, but those clauses granted such sweeping rights and included a lot of ideas that no one was sure would catch on or quite how they would work, and no one knew what it would really mean for the writers. So agents routinely struck those clauses out, which was probably a good thing, because when ebooks came along publishers were offering writers a better deal.