If I can make it, I'd bring my TFTC (Bill) The only MGC I went to (2011) I brought my TFTC, (a different one), and maybe my Star Wars Pod Racer.
I know there was a thread earlier about this, but if I come, I'll probably leave the family behind this time, which would free up a lot of time for me, so I'd love to help out, setup pins, help move them, help with repairs, anything else I could do.
I'm thinking long and hard on this one. I'd bring a sleeping bag, and sleep under my pin, and beer, and some home made Galiano (awesome stuff!!!)