Radio Shack was always two stores in my memory. There was the legit geeky side with electronic parts, and there's the Realistic/Tandy side hawking so-so also-ran consumer electronics. The perspective always seemed to be that parts were sort of a loss-leader for consumables.
The employees almost never knew anything technical, and were often suspicious of nerdy kids like me lingering in the parts section. I remember one time I was building a circuit and needed a .22uF cap. I asked if a .22pF was the same (I was like 10 or 11). Instead of saying "I don't know" the sales guy just kind of stared at the package and then shrugged and said "Yep". My circuit did not work.
I hear people floating the idea of RS reinventing itself as more of a hacker-friendly place, but from an investor's perspective you'd be switching from a giant consumer market to a much smaller niche market. Personally, I think that's a great idea, but I'm not sure you could ever convince investors of that.