Do you prefer to keep a genre pure when you write? What about blending genres in pulp stories?
Romantic awakenings of snake women on Mars? Did that in Blackthorn: Thunder on Mars.
Zombie horror stories that examine the marriage commitment? Did that twice already, once in Zombiesque and once in Pro Se Presents #1.
Fairy tales with inter-dimensional war and demons from the vast beyond? Check. Already done that too, in the pages of Classics Mutilated.
Super hero adventures mixed with fable and mythology? Not a problem. Check out Fishnet Angel in Show Me a Hero.
About the only time I stay pure is when I'm writing a straight up hard-boiled detective story.