U2FanPeter
Rock n' Roll Doggie Band-aid
I have my doubts about this - they aren't doing arenas for the fact that they have this massive stage that technically should not fit in GM Place. If that was the case, they would avoid Vancouver completely...and they would also be doing other arena shows in cities that do not have a stadiums...
I think the stage can fit inside arenas if it's hung from the ceiling and the bottom of the legs are not used.
I do imagine that this GMP venue hold by LiveNation is only as an emergency contigency plan. It is my feeling that u2 are good for 25 fully sold out 360 Stadiums in the US, including some extra nights. However I'm really not sure about more than that. I also wonder about u2's ability to play as many corners of the US as they would like while only doing stadiums. Some regions have venues that don't comply with all stadium criteria.
LiveNation must not be sure if they will do 50,000 like 1987, 85,000 like they did over 2 nights in 92, or 28,000 like they did in 1997. This is their 5th time playing the venue and locals know sound is a challenge.