Most editors in my genre charge from 002 to 007 per word. That’s for developmental and FLE, (Final line edit) – three rounds in all. The 10,000 fee you mention here would put off anybody from ever hiring an editor. I know few writers who could pay that, which is why Amazon is flooded with poorly written and badly edited books. I would encourage writers to contact other authors in their genre for tips on editors and to cultivate good beta readers.
Developmental Editing helps you fine tune the sequence and the order of your book. Have you presented the information in a format that makes sense to the reader; does each piece of information build upon previous material? If you’ve had a few people read drafts of your book and they’re confused, you need developmental editing. A developmental editor may even be able to help you uncover features in your work that will create a powerful experience for your readers.
Lots of authors I know have a hard time finding an editor because they feel that they want to “know” their editor. This is understandable when you’re entering into a developmental relationship, but copyediting and proofreading are much more technical skills. The best copyeditors and proofreaders I know are freelancers who are hard to find because they’re working for publishing houses, and the only people who have access to them are companies and/or individuals with stables of editors they’ve cultivated over years in the industry. If you find a service (or individual) you trust with access to a stable of editors, be open to being assigned to one. Ask about the individual’s qualifications, and what other books they’ve edited, but let the trial edit be the deciding factor rather than any connection you hoped to have between yourself and your editor.
If you know you are sensitive to changes, or that you only want edits that correct what’s wrong (and not subjective edits beyond that), tell the editor so. This kind of information is invaluable, and will prevent frustrations and misunderstandings. That said, don’t suggest this if you’re open to your work being better. Editors will bring your work to a whole other level if you’re able to loosen your grip on any notion that your creative expression is under attack when an editor makes changes to your work. The most successful authors are edited multiple times over.
In fact, Pressfield writes, “Resistance is experienced as fear; the degree of fear equates to the strength of Resistance. Therefore the more fear we feel about a specific enterprise, the more certain we can be that that enterprise is important to us and to the growth of our soul. That’s why we feel so much Resistance. If it meant nothing to us, there’d be no Resistance.”