Old Ways Are Best!
My guess is that they're not exploiting the market very much. I've been tracking a few of their items, waiting for them to get sold...and they never do; they just sit there until they expire, and then get relisted. Poking through their feedback, I've only found one of their OOP games sold to someone.
Well, perhaps my faith in folk's common sense can be restored here somewhat, but it still begs the question: What are they thinking?