If I had cash to burn

– I would collect Pullip dolls. And start with the DC inspired dolls, though at the moment there are slim (but adorable) pickings:

DC Inspired Pullip Dolls

Clockwise from top left: Batman (from The Dark Knight Rises), Batgirl, Cat Woman, and Wonder Woman

Pullip dolls can be purchased through the Luts Ball-Jointed Dolls website. They’re not available locally, but some collectors sell them online, brand new or second hand.