I have tried to figure out Radio Shack since the late 60s, and never figured out what they were supposed to be, or why.
I always figured they must be laundering drug money.
How they could continue to open store after store with no sales or customers seemed to defy the laws of economics.
Some of the more arcane tech items. TV antennas, computer/electronic cables (including the dongles to convert Ethernet to usb for Windows machines), and some the rarer small batteries. I've gone into Radio Shacks about as often as I needed one of the items I mentioned and couldn't find it elsewhere - about half a dozen times in the last 45 years.
Big back in the time of CBs.