I'm sure Best Buy could scale down.
Apples and oranges.
Different business model.
I am not asking Best Buy to scale down to beat Apple. Best Buy is not asking Best Buy to scale down to beat a worthless, irrelevant, number. That sales per square foot number is more or less meaningless when you use it as the source article is.
If big retailers like Best Buy decided to scale down to Apple retail's size to beat Apple retail stores, then, consumers, in my opinion, should be very concerned about the stupidity of America's top executives.
Saks, according to the source article, makes roughly 1/3 per square foot of what Best Buy does. But, while Saks' executives may very well be brainstorming to increase earnings, it is highly improbable that they are pondering remaking themselves in the image of Apple retail stores. Again, apples and oranges; different business models.
I no more expect Best Buy to scale down to beat Apple then I expect Yo-Yo Ma to put on blue suede shoes and swivel his hips in order to beat, outsell, or gain more popularity than Elvis. If every musician of a different genre changed themselves to beat Elvis we would be in big trouble.
Best Buy sells Apple computers. Apple retail is not necessarily a worry to Best Buy; Circuit City and Wal Mart might be.
There are, maybe, 50 different reasons that will get me into a Best Buy store that I could not use as reasons to go to an Apple retail store. And, when those reasons are products, most of them cost far less than the average price of the main items that people might go to an Apple store looking for.
Now I can even look at a Mac at Best Buy.