The point is that "small things matter." (1) For them, that was getting the speaker right. As for the references to RadioShack, I think he makes a good point:

The point is that "small things matter." (1) For them, that was getting the speaker right. As for the references to RadioShack, I think he makes a good point: RadioShack was important in helping people build those small things. (not necessarily indispensable, but certainly important). (1) That point is repeated many times, including the subtitle.