You haven't lived the life of a late 90's bay area nerd if you've never grabbed your copy of Computer Shopper and hit Fry's, Weird Stuff and Central Computer in a single afternoon. With friends. :D
Early 2000s here but yes it contributed so much to my feeling that it was an engineer/hackers paradise. Now it’s all consolidated so much it feels like it’s just corporate. Hoping I’ll get the chance to find that sort of feeling sometime again in life. I hear shenzen is incredible for that since they still make stuff.
HSC is gone too, sadly. The last surplus store standing in the Bay Area (I think - at least in the South Bay and Peninsula) is Excess Solutions in San Jose (http://www.excesssolutions.com/)