Great questions TC17. I often see men in their later years (maybe 70's, 80's) and their donor zone is completely gone. I wonder if they had some sort of diffuse alopecia, or I wonder when their donor area started to disappear. I guess that is senile alopecia and wonder if finasteride could prevent it or at least fight it.
Unfortunately Mitch, no one can help you out if you don't present the forums with good quality before and after pics. If there is any clinic that looks out for its patients it is SMG so do yourself a favor and contact them for a follow up. Like you said, 9K is a lot of money. So you owe it to yourself to get to the bottom of this.