If you wanted to go to a store with qualified salespeople that know what they are doing and actually shoot, you would only have two choices in the Detroit area.
Camera Mart in Pontiac and Woodward Camera in Birmingham. They are the last two of many in the area. While some of the big box stores and drug stores carry some camera and accessories only these two store have a full range of cameras, lens, bags, tripods and accessories you can actually touch and try. Sometime you know exactly what you need and can wait the couple days to get it from an online source. You will probably be able to purchase everything for less than a local store, including the shipping. But when you are not sure of exactly what you need and want to try a few different thing, or if you need it right away, the local stores are nice to have.
Please make the local stores a consideration for your next purchase, they sure are nice to have around when you need them
11 S Telegraph Rd
Pontiac, MI 48341
33501 Woodward Avenue
Birmingham, MI 48009