I'm a member, and have been for about 3 years now. Joined up at the 2007 GABF, which included a great hat, too! I use this board (though I've only discovered it recently, don't ask me how I missed it), Zymurgy, and the pub discount program.
I do have one interesting observation about the pub discount program though (and it's with the pub, not the program). I'm not going to name the pub, because that's not cool, but they've recently grown in popularity A LOT. They were in the back of the LHBS, and very small when I first started brewing. Everyone there was incredibly friendly, and the pub discount worked every time. Well, fast forward a couple of years, and quite few awards to the brewery, and their popularity has skyrocketed. They've moved into a much larger space, and they're constantly packed. Now, the AHA pub discount only works on week nights, excluding Fridays.
From a business perspective, I totally get what they're doing. They've become very popular, and the exposure they received from offering the AHA discount is no longer needed as much. That being said, it kind of feels like they're forgetting their roots, and the people that helped get them off the ground.
Sorry for the rant! I still love all the benefits from the AHA!