Web 2.0 Conference Coming Up

O'Reilly's Web 2.0 conference is coming up some and the speaker list looks great – Jeff Bezos, Mark Cuban, Tim O'Reilly – you get the idea. “The web as platform, and its inevitable evolution into an internet operating system” seems like an interesting topic. My question is, why does O'Reilly schedule it's conferences either during or directly adjacent to the various LinuxWorld conferences? At this rate, I won't make any of them.
–jeremy