I would love to go, but I can't.
I don't have a fancy setup, but I have two large monitors, the freestanding CDU from FDS, joystick, throttles, and tiller, and I could show people that you can have plenty of fun with just two apps: PSX and PFPX.
Internet would help, of course; that would let me put a moving map and IFR charts on the second monitor.
The point I would hope to make is that a clean, almost minimalist(*) setup is still an impressive enough experience.
*) Compared to things like home cockpits, projection screens, a network with a world scenery generator, and so on.
If PSX users have been there before, what have they brought?