I used to love stores like that. There used to be a bunch of them in NYC on Canal St. when I was a geeky little kid. They were so dense with stuff it was just stacked up to the ceiling. Those stores were so cool, and some of them were just huge. Often you would have to go down small stairs into a sort of basement space.. The electronics devices would all be displayed with not an inch to spare, with many of the displays all blinking this and that text, or video, flashing in all different colors. Plus all sorts of surplus gear and stuff from Japan and really everything that existed at the time, cheap. You could find the most amazing stuff there.