Jody, I am spotlighting your blog today because I think you have made some excellent points about, The Advantages of Professional Editors.
Jody does a wonderful job showing both sides of the coin and I think her points are very good.
I myself have been debating about getting an editor. As a new writer, I am often unsure of the quality of my writing. I know I have issues with the mechanical stuff. Spelling and Grammar checkers in Word, don't always fix my mistakes, so a helpful set of eyes is always nice. Beyond that, Editors can also help us refine our work. They can take an objective look at our story, The characters, the plot structure, etc... On the other side, there is the price and the tendency to rely on the opinion of someone else to make our story good.
So take some time and check out her blog post. If you are like me, in the "Do I get and editor debate," it might be a really helpful read.