REPUTATION/EXPERTISE of the PHOTOGRAPHER:
There is an old story about a ship that cost a company millions of dollars. Something went wrong in the engine room and the ship was stuck in dock. They called various "experts" who spent weeks trying to fix the issue to no avail and at a cost of tens of thousands of dollars. Finally a older gentleman was called in who simply brought in his small tool bag and a hammer. He set about pinging on various parts of the vast engine with his hammer, finally settling on one area. He spent a few minutes pinging in that area, took out a few tools and fixed whatever what was wrong. After a few moments the man straightened up, looked at the captain and instructed him to "start her up." The captain disbelievingly went to get the engines started while the man sat in the engine room listening as the engine roared to life. The man tipped his hat as he exited the ship to the staff who sat dumbfounded because they had seen all the experts come on board for days with their expensive equipment only to have the ship not fixed. This man did it in a few minutes with a few pings of his hammer!
A few days passed and the man sent the shipping company a bill for $10,000. The accounting department contacted him immediately. Why all the rumors mentioned that this man had only spent "a few minutes" fixing the ship "with his hammer and a few other random tools". When questioned about why his bill was for $10,000 – did he accidentally leave an extra zero on the bill? The man confidently responded: "In fact the time was worth the $1,000. The other $9,000 was for the years of experience and the ability to discern the issue as quickly as possible for the company."
Now I'm not saying that photographers fix large ships but being in demand, being well known for quality work, having a good reputation often costs time on the photographer's part (years of practice, study, experience, etc). A photographer's expertise comes at a cost, their time learning their craft and learning the intricacies of lighting and the commitment put forth on their end to create a persona about their business that oozes professionalism. A great number of photographers go a very long time from the time that they purchase their first good camera to making money at the business of photography. Many photographers, when first starting out, rush in thinking that the business will be easily profitable in no time, how expensive could it be to get a camera and use it to create their dream? These photographers often undervalue what they do because they have the realization that they do not have experience or expertise but are very adept at pushing the shutter on the camera. Many times these casual "professionals" neglect to factor in the cost of business, the cost of equipment, software, back ups, etc.. When you hire a photographer of sound reputation, you are hiring an expert, one that knows that they must always reinvest in their business to create the reputation of being top notch. To create good work a photographer possesses not only sound knowledge in the technical and creative aspects of photography but also good, reliable equipment and back up equipment.