Not going, logistics etc., but the kind of presentation you guys mentioned above (7 slides, 10 slides) could be called a "lightning talk", where someone is given an opportunity to speak for maybe 5 or 10 minutes only. This was done at a software conference a while back (can't remember which one), and anyone could register to give a lightning talk on any (related) subject they like.
Maybe it would be an idea to invite any participant to give a lightning talk - vendors could briefly describe new or upcoming products, members could describe their favourite keyboard, artisans could give a little insight into how they work their craft.
As I said, not attending, so I haven ot been following the discussions, and apologise if this has been mentioned before.