Actually, WPPI is next week in Las Vegas - Same players in the trade show, with some interesting variations - actually, the WPPI show is more geared to the interests of advanced amateurs, in that the focus is away from digicams and general public photo merchandise, and geared more towards Portraiture and Wedding (duh, that's why they call it that), so Fine Art photography needs are more addressed - for example, people like Hahnemule Paper, Really Right Stuff and InkJetArt have booths, and they were not present at PMA.
I may be able to go again, this time for a full day, and to perhaps head over to Zion and Page....