I wouldn't if I were you. Sure, the pretty book looks.. err... pretty, but... is it really worth it? Could you not just probably find it on ebay or something later on? I dunno.... I mean, I LOVE these games, but... I guess I'm just a little miserly with mah monehs, I guess >.>
So, Comicon had some fun stuff for KH, apparently. I could link the vids, but... honestly: they aren't noteworthy or the best quality. There was a better version of the Re:Coded trailer, but you still couldn't hear it and had to rely on subtitles. Then, there were a couple showing footage of Terra and Aqua in combat. The most noteworthy one was a cutscene from the actual game in Radiant Garden involving Aqua, but again: no sound and sometimes the in-game subtitles disappeared due to the lighting of the building.