The quotes I posted are for a specialized genre – romance. These books are shorter than many other types of fiction and yes the editors are professional. Many do this as a favor to authors they love and work with in publishing houses…so they lower their rates for private work. Over time of course, their rates increase but the prices I quoted for my industry only.
The greatest benefit of an editor is that he or she is not the author. An editor is someone else. Some editors are professional writers, but every single one of them is a professional reader. As a writer, you’re probably a voracious reader, but you can never be a true reader for your book. By bringing forth a book into the world, you’re asking other people to read something you’ve never read. If you sincerely want the book to be the very best that it can be, then you must ask someone else to read it first. You owe it to your book, to yourself, and to your readers.
Obviously there is a big difference. I actually started with screenplays (with some mild success) partly due to hearing that as long as you have a good story, the grammatical errors won’t be a big deal. Well, that was not true. Maybe if a producer liked the story or I was already established but every contest I entered always came back with feedback about the grammatical errors. Even if I won or placed as a finalist, I always received critique on that. Very little is spelling error, it was more about structure, etc.