I was there Saturday is I thought it was pretty darned crowded. I was a bit disappointed that there were not more booths or tables from manufacturers. I heard that Prusa was a sponsor, but no table or booth. I guess you had to spot Joe and track him down. I really wanted to see the I3 mk2 multi-filament upgrade in action, but I did not see one anywhere.
@Catsmasher_Jones - the whole point of MRRF is that those vendors aren’t there. Those people have spoiled things like Makerfaire because it’s turned into a commercial trade show, and not about innovation or what people are learning.
great 
@ThantiK I really wanted to see the Prusa multi-filament extruder in action and talk to the folks who make it. That is innovation that I wanted to see. When they advertise Prusa as a major sponsor - I expected to at least be able to find them. Don’t get me wrong - I had a lot of fun just talking to everyone else about their stuff, too.
@Catsmasher_Jones Josef was right across from the E3D guys. I talked to him for a while – maybe just bad timing?