Just a quick one for all those with upper tier seats: don't fret. It will be awesome.
On the Viva tour I got 3 right at the very back of the arena facing the stage and it was just unbelievable. Perfect view of everything and seeing the whole place stand as one when Viva La Vida started will stay with me for the rest of my life. And if you are on that very back row there's a little ledge behind your seat to put your beer on. Win.
See you all on the 4th