Cripes a summer regatta in any river town would put that to shame. I did do a search for "Dave Matthews" and "portland / Obama" and didn't find any concert coincidences, but did find a few postings for people wanting to trade Dave Matthews and (I am not making this up) Dalai Lama tickets for Obama tickets. This of course could adversely affect US-Tibetan relations, should Obama prove victorious in November...