Amazon offers the Fisher-Price Imaginext DC Super Friends Transforming Batcave, model no. CHH91, for $43.80. At checkout, it drops to $35.04. With free shipping, that's the lowest total price we could find by $9, although we saw it for $5 less in November. It features a Batman figure with armor, the Joker figure, projectile launcher, and transforming Batcave with expanding platforms and Batcomputer.