So I was in Williams Sonoma (I cannot afford to shop there I jus go in and wish I could) the other day and I saw a KA Professional 600 mixer for $399 wich is pretty much the standard everywhere but I also saw the 620 Limited edition  whatever that means they looked identical but the 620 was $899 I really need to know what in the world makes a 6 quart mixer $899.  Hell, for that price you could probably geat a small, used, mabye, 10 qt commercial mixer but a 6 qt KA for that what gives does anyone know.  Just remember all this is rhetorical because I can't afford $399 let alone $899 just wondering.