The chairs and their owners are a real nuisance. I remember posting complaints about this very topic several years ago, and viola the standing room only section was born (applause for AC). Now people are bringing their chairs down and setting them up and walking away leaving vast expanses of space that no one can access. What makes it even worse is the sense of entitlement that the chairs bring to their owners. 90% of the people are in the loge areas and 10% in the prime viewing/listening areas. Sorry for the rant, but it does suck the fun out of the whole affair.
On a lighter note I posted my recording of the Blues Traveler show on etree.org. Check it out here:
http://bt.etree.org/details.php?id=535645
Can't wait for the Truckers!