York Hall was really special. Really small venue, must have been about 900 people there. Arcade Fire set up in the middle of the room as if it were a boxing event (York Hall's typical events, apparently) and then hopping around the stage. Great atmosphere, crowd in full voice. The Arcade Fire gig I'd always hoped to see really.
As for touts, you needed the original credit card to get tickets. They swiped the card and then the tickets printed off. Seemed fairly tout proof. Hence, perhaps, there seemed to be a decent amount of returns available yesterday afternoon (and maybe today if you keep an eye out for them on twitter).