The O2 arena is way too small for all the UK armys. The capacity for the O2 arena is 20,000 and then put that over 2 days, it's 40,000. The capacity for the Wembley stadium is 90,000 and then put that over 2 days, it's 180,000. That's more than I think is enough for all of us. Many armys are getting upset (including me) for not getting tickets as they sell out too fast and certain armys buy loads of tickets just to resell them for 3x the price which is just disappointing.