I had a wonderful time this year! I'm still not sure what terrible thing I did to my Duet that made it corrupt the SD card a couple hours into Saturday morning, but I had it all back up and running pretty quickly. People passing by were all very impressed with the PanelDue and DWC interfaces, and I had a lot of good conversations with people about how much I love the Duet Wifi/RepRap firmware. I definitely can't wait for next year!
Also, here's a picture of my ridiculous Duet-powered machine at MRRF. To the extent of my knowledge, I'm the first person to put a infinity mirror into a printer (what a claim to fame, hah). So many infinite Z-axis jokes!