The cases I pillaged at WM had these in pre-pack displays, Rob... So I'm assuming by that, that these are an endcap or island display item that can "float" from store to store, like the coin folder/Vader is, or the Tins have become (at least in my area). They wouldn't show on plan-o-grams then I don't think.
The figures from the pillaged cases have wound up, out of the display, on an endcap with other SW stuff like the folders and whatnot. No designated spot for them with a tag though. Seems they weren't to be out yet, or that's my best guess from what I've seen.