This is a good example of what a retail store should be. Getting expertise with a purchase is worth spending more. I don't know much about photography and wanted to make sure I spent my money wisely. I narrowed down what I wanted by doing research before going to the store and this allowed me to have a good conversation with the store owner and staff.
I bought a good DSLR camera, accessories, and will be going to the class with my wife for the training to learn how to use my camera.
I believe the prevalance of do-it-yourself stores actually results in most of us doing it to ourselves. These folks are making sure I get the most out of my camera.