Markets in everything, Japanese edition

The Otaku are at it again:

So the niches are always getting narrower. Maid cafes have been the rage for about four years now, and a true otaku
would never be satisfied to go to any old one. There must be a fetish
about the experience. Perhaps you’d like to put your head on the maid’s
lap and let her groom your ears. "Let me show you an extra-special
level of nuttiness," Lewis says. He leads me to a shop called Candy
Fruit, where a maid cafe once stood. It’s now a shop selling glasses to
two specific breeds of client: women who want glasses to wear with
their maid uniforms. And men who want to buy their glasses from a woman
in a maid’s costume wearing glasses.

The entire article is interesting.