Damn what a tour, all bands I should listen to more of as well. Congress seems big for em though.
Coheed played Congress on the Black Rainbow tour. I'm not sure if they sold it out but it was packed as shit. Before that they played The Riviera for the Neverender tour, which is substantially smaller.
Finally Coheed gets another prog giant on the same tour, I love their diverse lineups, but this one I think was a long time coming. See you guys at the Marquee.