Not for nothing dude, but Dream Theater has been playing 3 hour sets for years.... not to mention the fact that their music is light years more complex than Deftones. Yes, they cut their set down to 90 minutes this go round, but they also gave the fans 3 hours of other bands playing.
I feel ya on Heaven and Hell, but the group is entirely 60+. Their set time is commensurate with other bands their age.... I would have loved them to play another half hour too(especially at those ticket prices), but they did execute their songs to perfection.
I'm glad the Deftones are playing a nice long set too... but it's not exactly comparable nor accurate to bash those other two bands.