The pub discount program is not available in WA state for a variety of stupid reason I won't go into. The point is that is obviously not why I'm a member.
I'm a member because I love zymurgy and Zymurgy, and nothing beats the conference. But beyond that, I think it is really important to have a strong AHA to make sure that our rights as homebrewers are protected, from Oregon's problems in the last year to Alabama's current mess. Even if the AHA can only supply statistics, a point of reference, and expert advice, that is invaluable when it comes to growing the hobby, improving the beer in any area, and passing legislation.
It's great that so many people see a value in the pub discount program, but there is a lot more to be gained from the AHA than just that.