I also got another GA for Chicago 4 and a seat for Chicago 3 (Still on the lookout for a GA, though).
But I can't help thinking everything's been far too easy. Is the demand still there? Is there any US/Canada show that is actually sold out? There are still tickets even for the opening night! I don't know if there's even a point in adding more shows. Bizarre.
I wasn't able to go to the US during 360º (had to wait until 2011 to see them in South America) but I remember the chaos on Vertigo Leg 1 ticket sales. This is sooo different. I am grateful for being able to score (almost) all the tickets I want, but on the other hand it leaves me worried about a future Stadium Tour.