Tech isn't very alien to us, but for the average Circuit City or Best Buy customer, that's another story.

Or take Home Depot, Lowe's, Ace Hardware, and the now defunct Sears. It's nice to have people on the sales floor that know about the various tools, paints, and home improvement projects. Even in the YouTube era where you can get project ideas and tutorials, having someone physically present to ask questions or bounce ideas off of helps tremendously.