Upload & Sell: Off
So if it only took Picasso 3 hours to produce a painting, does that make the value of the end product any less than if it had taken him 3 days?
Yeah, but 1,000-5,000 paintings? OK, I get that a painting takes more work than a photograph (or does it), but I do have doubts that a 3 day turn-around really does the work justice, unless your style (and what your client wants) really requires very little artistic interpretation -- i.e., it's shot like someone submitting a couple of thousand photos to a newspaper on a break-neck deadline.
I think it might also help if you have a "settled" or established post-processing style, and it works for most/all situations you shoot (different lighting, locale, etc.). Even so, the perception of value vs. work done can be an issue with a fast turn-around. Personally, I like my photos to sit a few days before I even cull them. About 5 days. It helps me be more objective and less blinded by in-the-moment exhuberance. I would very much like to get home, and spend the rest of the night, from midnight to noon the next day plowing through, but I resist the impulse because I don't think I would deliver the same quality if I did that.