I recently purchased Japanese guidebooks for Wind Waker and Paper Mario TTYD.
If you're a fan of absolutely gorgeous game guides (which are honestly more like art-books) then you might want to look into some of the Famitsu Editorial line (http://www.enterbrain.co.jp/kouryaku/). They are kind of like Prima/Bradygames over here, but many of the books they produce are absolutely perfect! The Wind Waker book, for example, contains drawn maps of every single island and dungeon in the game; and we're not talking screenshots of the in-game map like the Prima guide, but completely new artworks produced by an awesome artist that accurately represent every notable (and not so notable) feature in great detail. It's tough not to just gush about how amazing these books are, but I feel like they totally deserve exposure to a wider audience. When you read them it genuinely feels like the people who made it cared a great deal about the end product, and wanted to create something that captured the look and feel of the game as a whole.
Plus, y'know, if you speak Japanese it's a 400-page complete guide-book. Look at all this value!
Erm, I bought lots of stuff but it's all digital I've bought: Borderlands 2, Icewind Dale, Icewind Dale 2, Baldur's Gate, and Stronghold.
Last physical gaming related this I bought was err... this for $40: I actually bought 5 games for it that I should be getting in the mail soon so I'll post those when I get them. Also, I don't have the computer chair that is in the background of that picture anymore. I got so frustrated with it that I switched back to my old one and gave my new one to my dad.