I too have had some of the same problems with AD - they just can't see me there with a wad of cash in my pocket. I have been in several times, walked around the whole store and not even gotten a nod of the head.
I don't buy this "you should have been here Thursday" BS I have heard it from several shops. I have been back on "Thursday" (or what ever day they make up) and they still don't have much. I own a small hobby shop. If I am selling out of the 10 widgets I bought this week, you can be sure that next week I will order 20 more. If I don't have it, you can't buy it from me and will go somewhere else.
I don't see that the locals are really concerned with the LFS. There are several calls for group buys on this forum to the exclusion of the LFS. Local shops can't compete with the internet. Most of the time, the local shop nearly pays what internet venders charge after they pay have it shipped to them. Don't forget that the LFS overhead for the building, all the electricity, water, etc. Appreciate that they are there when you have that emergency but you have to support them. They can't order fish, corals and dry goods if you are buying somewhere else.