Today I was over at Akihabara and stopped by the huge Yodobashi Camera there. It is even bigger than the one at Shinjuku. Multiple floors with various kinds of electronic gizmos. The 3rd floor is all camera related stuff. It is like going into a large supermarket. Here is the Sony A77 with 6 lenses for you to play with and even mount on your own camera:
Here is the tripod section. It is a little hard to tell in this photo, but I am standing near the front of two aisles of tripods in 4 sections going all the way back to the wall:
I should have taken a photo of the camera bag section. They had 3 long aisles filled from floor to the top with every type, size, and color of camera bag that you could ever imagine.