I think one thing we need to be aware of in this field of photography, and one thing I see that keeps some people from actually selling successfully, it the act of micro-managing ourselves so much that the worry put in our minds does not allow us to be successful in the marketing portion of the business, there are several steps in becoming a successful photographer, start focusing to strongly and micro-managing that aspect of the business then other areas start to suffer.
I have to agree with Blansky, a good majority of the public don't care if a print is done by the "Artist" but they look for the quality product they wish to collect or display, I have run into quite a few collectors, that are happy to purchase a print done from a Ansel negative, and not worried at all that it was not printed by Ansel, myself personally have most of my color work printed at the local lab that I used to work with, as I have the ability to input through out the entire process and they know exactly what I want out of my prints...often times I have them process my negatives also, which based on your question, would mean they are not mine, but in fact they are.
The best answer to your question, resides with you, it is what ever you feel is right..
Dave