Geek Destinations in St. Louis? (Also San Diego [slightly different topic])

The guys at gateway have the building next door full of inventory, and if you get friendly with the right fellow at the counter, you can get a tour of that building, and see a bit of other stuff. Just ask what they have, and indicate you made a special trip in from some distance and I have found they accomodate me and dig a bit so that I don't miss any "new" stuff. but then I've been coming there since they were on Delmar and Stu had just started it (maybe 35 years ago). Sadly Stu passed away a couple of years ago, and is sorely missed. on a slightly different topic. Gateway has a San Diego outlet that has some stuff, and there is also a place nearby there worth seeing in San Diego called Industrial Liquidators. I also dig out the listings for the guys in El Cajon when I go down there junking. Any other San diego places to see? Jim