Good luck in this enterprise. Living in the St. Louis area and watching as very good audio shops went under, I am not sure what works today. Kevin Deal at Upscale Audio has successfully blended retail and internet, especially with his select lines and living/working in Southern California. Walter at Underwood HiFi has developed a strong following using Audiogon and the internet and providing exceptional service, availability and modifications of equipment. The advent of cheaper Chinese equipment and pure internet sales makes the retail side very challenging. However, I love walking into shops and sitting down and listening to equipment. Whether clients end up buying becomes the real issue. Best of luck and let us know. I am always in the hunt for great audio stores!