I agree with your logic in the second and third paragraphs entirely. I won't pretend to be smart enough to know how to have saved that company, but surely any viable solution would have involved reducing their physical retail footprint by a significant amount.

>Just because the maker movement exists, it doesn't mean it's big enough for over 5000 stores.

Surely not. But as another commenter pointed out, Radioshack has always catered to the enthusiast, relying upon them to drive sales of more consumer oriented product.