Thoughts on the Amway Business Model

i met a guy a year ago who is doing amway.  i give the guy full credit, he is definitely giving it his all.
however, I am a numbers guy, and the financial numbers are black-and-white.  they don’t lie.
from public numbers online:
 
amway
50 years in business
worldwide sales are $7Billion
http://www.amway.com/en/Media/2007AnnualSales.pdf
as amway is a private company, numbers are private
but […]