If I'm remembering right, when I used to work in a "Home Entertainment" dept, Disney would have limited releases of their movies. I thought they rotated them, but perhaps some never were re-released? Like maybe "Bambi" never came back out? I could see if "Fantasia" was high priced, but I don't know that it was ever released on VHS. I suppose movies that will never be released again, like "Song of the South" would be high priced due to rarity as well.