Cinderella37, sounds like The Art of Disney did not have what you were looking for on your last trip. But I have to disgree with your comments of "limited offerings." That store carries quite a bit of various items that can appeal to people. They have a large section where the sericels hang (between the 2 front doors), and the largest section of the room is deicated to LTD cels and pin sets (plus the animated art ~ you know, the ones that move & talk 7 light up). When I was down in May, the first thing i did was go over there and buy the complete set of Robin hood WDCC. I am not harping on you or anything, just trying to show that while they did not have what you wanted (or that you felt the selection was not good), they had quite a selection for someone else (me, for example). A couple of weeks ago, they were doing gang buster business, so they have something that people want.
OK, I have a bit of inside info, so to speak, b/c I am friends with the manager there, and have been waiting for the WDCC 5 yr. Steamboat Willie piece to come in so I can order it from her. I have printed out your comments and will try to get in touch with her on the phone this weekend to pass them along. Please keep in mind that while she has some say, there are others above & around her that make the decisions as to what goes to that store.
As to the Main St Gallery, I always thought it was in a bad spot (ie people did not know it was there). Maybe if it was on Main St, it would do better. BTW, they closed that one in April I think, and opened one at the Animal kingdom, where they were supposedly getting more business for this kind of stuff.