I keep asking myself if editing is worth the price. Other people have asked me, "Is editing worth the price?" Of course, your mileage will vary as will the cost. But, looking at this screen shot, I'm going to have to say, "Yeah. Pretty sure it was worth it."
This is a view from Microsoft Word's "compare documents" feature. All the red indicates changes between the first document I sent my editing team and the final document that I published. I removed the "formatting changes" from this view.
As you can see, there's not a whole lot remaining from version one.
So, is editing worth the price? For me, it is.