I think that the gothic, latex, and bondage niches can often be sold alongside one another. Just because something fits one of those three niches, however, does not mean it is synonymous with the other two. They can often complement one another, however.
Blue Blood's SpookyCash has a whole site devoted to one area of crossover between those niches with
RubberDollies which features goth girls and similar in and out of rubber couture.
Here are a couple of images I shot for the site:
