Tax: I just noticed that there is a short piece on taxation in the article, with references, at Consumers' cooperative#Role of government.  There is also a lengthy article on the United States taxation position in the Talk page, currently above at Talk:Consumers' cooperative#Role of government
REI: On a global scale, REI is quite small and relatively unknown.  However, as the best known consumers' coop brand in the US, it is probably worth a mention.  
Bkobres, I think your comment about removing content is hyperbole, as nothing is ever deleted from Wikipedia.  However, I quite understand your giving up, as collaboratively editing an article can be quite stressful, especially if you have some pride in your workmanship.  Thanks to the GFDL, when you leave Wikipedia, you can always fork an article that you like, putting a copy on a read only website so no-one can vandalize it.  I have been tempted to do that now and again.    (or Hrothulf) (Talk)