I worked at a Radio Shack store in Tysons Corner in Northern Va in the summer of 1971. It was a small store but the highest grossing store in the DC area. We moved more combination stereos, the ones with a tuner/amp and turntable and speakers attached, speaker systems, car speakers, audio cable adapters, cassettes you name it. We even had a tube tester, one of the few left. The place was run by two laid off EE's and they knew their stuff. Oh and battereis too.
There were a few groupies that hung out in the store, one was a DC Aux cop. I guess he had no life.
There was a company president who would come in and buy 10 or 20 boxes of cassette tapes so he could record his meetings. He loved us.
The store is still there but I don't know how much stuff they move.