Jungle Bros was awesome - I had a chance to play through the whole demo while not running around babysitting consoles and keeping people from trying to grab my KOF98 AES cart from under the table.
My personal MGC horror story - there was an original dedicated set of Capcom cabs in the Jersey Jack pinball area - a Marvel vs. Capcom 2 and a SF3 Third Strike. Not the plan ol' uprights mind you, but legit, blue 6'5" QSound cabs. I've got 3 cabs in my garage right now and don't have room for anymore - I've been trying to unload a Centipede cabinet for months. So unless I could wheel and deal my centipede cab I was out of luck.
So at the show, there was a SF2 Turbo in a dynamo cab (which needed a little TLC and restoration but was structurally sound with a good monitor) for $250, and by the end of the show those two Capcom cabs were $400 a pop. I ran down to the arcade hall as we were packing up the console room and offered the centipede cab straight up for SF2. The guy said he would do it all day but couldn't take the centipede. Ran down to Jersey Jack and offered Centipede + $150 for either of the CPS cabs. They agreed but backed off when I told them I live 15 minutes from the interstate onramp. Damn.
The Jersey Jack guys came back to me again and offered to meet me at the 94/KR exit in Kenosha to do a swap. They said that if I didn't buy those cabs today they were going to strip them, sell the monitor and boards and take a saws-all to the cabs themselves and dump them. It broke my heart but I just can't do it with a planned move to downtown Milwaukee this summer. 1200 square feet in a high rise condo does not leave me a lot of space for 4 arcade cabinets, haha.
If anyone is ever interested in buying an arcade cab, MGC (at least this year) was definitely the place to do it. The prices were VERY reasonable and most of the sellers just wanted to unload their stock. I was able to talk a lot of those guys down on price. A lot cheaper than even Craigslist.
Should have a video up tonight for the DHG console room. I'll post it here.