I only went in to Columbia Photo Supply once. I have an old Fujica ST-605 35mm camera that my mother bought me in tenth grade (75 or 76 I think) for photography class. Aside from a built in exposure meter, this is a completely manual SLR and had given me years of good service, and in fact I took a number of the older pictures on this site with it (for instance The Towers).
Unfortunately, the film advance started giving me trouble resulting in double exposures in some cases and missed shots in others when I could not advance and cock the shutter at all. With the closure of Jackson Cameras, I didn't really know of a full service camera store in the old sense (a store that might actually have local people that knew something about fixing cameras), but I decided to try Columbia Photo. I thought it did have a bit of that old Jackson atmosphere, and I enjoyed looking at all the paraphernalia like developer and stop baths that I hadn't come into contact with in years, but in the event it turned out that the camera was too old to get parts for, so I wasn't able to get it fixed.
Not too long after that, the store went out of business, and now Rogers Brothers Fabrics has moved from Trenholm Plaza into the old Columbia Photo building.
And the camera saga had a fairly happy ending. I went on ebay and got an identical ST-605 (which came from Australia with a roll of film showing some kid posing in his karate uniform with his pet rabbit..) which works fine and which I still use when I want to shoot something high-res (though that may change now that I have a new digital "closing cam 2").
UPDATE 27 July 2010: Rogers Brothers at this location has now closed