I would have to agree with the sales brochure which states that "You will never get sober by simply deciding not to drink".
Isn't it true that anything that takes time and perseverance to accomplish cannot be done by merely deciding that you will do it? If I decide to learn to speak Chinese, at what point have I accomplished that?
I do believe that once you decide to never drink again, the hard part is over. However, for me at least, there are daily decisions I have to make in order to avoid drinking.
"Defeating your addiction requires building a substantial support network."- well, I don't know what that means and I don't think I have that. It sounds expensive, whatever it is.