何とか is Our Specialty.

The third thing you'll notice is how specialized the stores are, and that they're all seem to be geared towards..well..おたく.

Here's a few:

One store sells wires and cables. That's it.
The other only sells the Familycom (Nintendo) and related software and accesories.
Next we have a store that specializes in Cosplay (costume play).
Now a store that only sells lights.

Oh yeah..I also found a store with 5 floors of pixelated porn.

No pictures of that one..