Having less than a year experience here on LuLa I can't talk to what has happened before, but there seems to be a constant 'why DMF' or 'convince me' threads that tend to go down hill. The easy answer is that until you shoot one and look at the images. I would like to know how the Sal Cincotta workshop with CI went. The market for DMF is going to get interesting with the CMOS based units shipping from multiple vendors. I believe that wedding shooters or anyone looking to differentiate their work or justify their price will be looking to add DMF. For these types of clients, it's a mid-week dead season type of event with models, strobes, etc with them bringing their existing kit to compare.
As for the PODAS to the Palouse, I find it interesting that Art Wolfe will be leading his own workshop just before the PODAS one. When you look at the costs and what you get out of it, the Phase One gear is a great trump card. If I were to build a PODAS adventure, I'd target some events where photographers are going to be already. Albuquerque Balloon festival is high on my list, but I'm not too sure I'd be able to function at 4:30am.
PODAS needs a twin, PODEx (digitial experience) where it's subject matter specific. Architecture, studio, product, portrait, wedding, all topics that can be focused on for 2-3 days, with intentional breaks to separate fun shoots from work shoots. Offer a pre-workshop 1 day intro to CaptureOne & 645DF+ so everyone starts shooting on day 1.
To expand it a bit more, with LuLa taking on the host role, would there be more interest in PODAS-type experience if it was expanded to be more vendor neutral? Bring in the Hasselblad, Leica and Pentax MF shooters who have their own gear, and still offer up the Phase gear as a tease.