The O'Reilly conference fliers always leave me with the impression of an overprice cheerleading tourney.
Instead of practical endeavours -- the past hallmark of O'Reilly books -- recent years have been too faddish, too dot-com. Wasn't there once a Journal Of Linux Technoology during the 1999 Linux hype? I believe the "journal" lasted for one issue.
Recently we've seen MP3s, the Human Genomics project, webblogs, and SETI -- both hyped in general news media and at O'Reilly. Surely O'Reilly can do business as it sees fit -- but neither company nor its proprietor should complain when the market shifts from acceptance of experimentalism to weary groans.
All the best.