The Wall Street Journal has proven it can find fault with just about anything—this time it’s Apple’s retail operation. WSJ says that Apple retail—one of the most successful and different operations in the world—is suffering.

But then they have lines like this:

Sales at Apple Stores in the recently reported third quarter slipped to $4 billion, down slightly from a year earlier…

Most retailers would love to “slip” to that.

It [Apple] raked in $5,971 per square foot in 2012, up 17% from the $5,098 per square foot the year before, according to retail consultancy Customer Growth Partners. By comparison, Tiffany & Co. had sales of $3,453 per square foot in 2012, and popular yoga-clothes retailer Lululemon Athletica Inc. pulled in $2,464 per square foot last year.

Why not worry about Tiffany?

I wonder how much Microsoft makes per square foot? I know that’s a silly question for WSJ to ask.