Commercial photography encompasses several disciplines that a photographer needs to perfect, including Portrait Photography, Architectural Photography and of course, Product Photography. Shooting products is now in bigger demand that ever before, with the growth of so many internet and Ebay traders. Perhaps the problem for professional photographers is that much of the demand is being met by "the clients" themselves, who are shooting on i-phone or cheap DSLR and very basic lighting. And that may well also be a huge problem for the seller. Products need to look their best to entice interest and stimulate sales, and that isn't achieved without some degree of skill.
By and large, photographers have actually been educated in what makes a great photograph and how to achieve the results that are desired. More than that, they have had their work critiqued for a number of years by professors and industry experts in order to ensure they fully understand when an image is strong and when it is weak. More than that even, they will have studied the work from the giants of the industry to fully appreciate what can be achieved and where the very best benchmarks are set. A good photographer is well equipped to tackle a shoot, as he will know the pitfalls to avoid, and with experience, he will also know how to create an eye catching image.
When seeking the services of a professional commercial photographer, you have to remember that what is on offer is the photographer's ability to ensure the images represent your company in the very best light, and your products have maximum appeal in a competitive marketplace.