Like "therewolf" is saying the money is in the false perception the the AR is the best around & the gun nuts that don't know any better or are scared to buck the crowds thinking will only buy magazines that glorify this thinking.
Guns & Ammo publishers put out a book called Complete book of the AK47. I was looking though a copy at my local book store & all the time while standing there all the comments were "that gun is a piece of junk" or "that is a commie gun"! But all the time I stood there reading no one that made a comment picked up the book to read the truth.
The guy at the store said that they can't keep the AK books on the shelves, they sell that fast. So maybe the word will get out with enough books out there & if the have the smarts to read them.