Thinking about it, I just realized that my local Barnes and Noble bookstore doesn't carry DV's decks. I can't recall ever seeing one of her creations there. I've seen other lightweight, commercial stuff, but not DV's. In fact, what I see in this Barnes and Noble isn't bad at all.
I bought the Housewives Tarot there a few years ago. And since then I've seen other things, like REAL tarot, show up, too. Just off the top of my head, I've found the Deviant Moon, Shaman's Oracle by Jon Matthews, Medieval Scapani, Legacy of the Divine, Vampire Tarot by Robert Place, Voyager Tarot, and some other surprising stuff. (And yeah, the Gilded, too.)
I think that what B&N figured out is that there's no money to be made in selling the same thing that everyone else sells. If someone can find DV decks in just any brick and mortar store, then people who want DV decks will buy them in just any brick and mortar store, and they don't have to go to B&N unless they feel like it. If B&N carried DV decks,it would leave B&N with only a small percentage of the DV sales. That's the trouble with carrying a very common item.
So it looks like what B&N are doing is carrying the stuff that the other places don't sell. This means that those who are serious about tarot go to B&N and spend their money there. It seems like a sensible approach.
OTOH, Barnes and Noble is a bookstore chain, and I don't know what the other locations might or might not carry. Still, it's nice to see that one really huge bookstore doesn't have room for Doreen.