Do you have any idea what the career/educational path of your editor was like? While it's not a career I've ever thought of having, I've lately realized that at even a portion of that level of skill is a powerful thing to have.
As I noted before Karol isn't only writing stuff, this is in fact a small part of his job, he is editing/managing our other writers and he get's paid on an hourly basis.
The deal that we have is a bit more complex, but to get an idea we pay >$50 / hour.