Trader "BookOff" - Shinjuku, EastSide

A whole buncha reasons to be there.

BookOff joints vary from place to place, supplying, as guessed, books, but also a whole slew of CDs, DVDs, magazines and game soft/hardware.

This particular place in Shinjuku is credited as one of the largest in Japan - their gaming section speaking for itself. Dealing in just about anything that can be spun for a buck means they also accept old school gaming stuff. Prices range from insanely cheap to reasonable and always have a diamond or two to be found.

A retro gamers paradiso, definitely worth going out of your way to check once a week.

Sellers beware, you're gonna get a bum deal droppin your stuff here - Akiba/Ebay all the way.

Game trader "Enterking" - Koenji, Tokyo

Haven't found many of these places around but can definitely vouch for the prices. Excellent deals on all major consoles and game, little as 200¥ for used 360 and PS2 games, 800¥ for PS3.

If you're after good deals on second hand consoles, controllers, fight sticks and peripherals, this is the place to be.

"Yodobashi Camera", Shinjuku

One of the big three electronics stores in Japan. There's not a huge difference between the three in terms of price and selection, but Yodobashi has a tendency to run special offers and have clearouts on occasion.

Yodobashi is large enough to warrant 4 buildings in the area. This one on Shinjuku west side, dedicated solely to games and gaming, is definitely worth checking, even if just for window shopping.

"Yodobashi Camera", Shinjuku

One of the big three electronics stores in Japan. There's not a huge difference between the three in terms of price and selection, but Yodobashi has a tendency to run special offers and have clearouts on occasion.

Yodobashi is large enough to warrant 4 buildings in the area. This one on Shinjuku west side, dedicated solely to games and gaming, is definitely worth checking, even if just for window shopping.

Entertainment Megamart "Dorama", Hakonegasaki

Mad selection of books, manga , figures and games. Better to buy here than sell stuff (lil like Akiba). Few arcade machines backed up in most Dorama joints but essentially a UFO catcher arcade area.

If you're out and about driving in Tokyo you'll probably find one of these places on the roadside in the middle of nowhere.