I've got a tier system going.
Can't miss under any circumstances:
Protest The Hero
Will go out of my way to see:
Sevendust
36 Crazyfists
Silverstein
Ill Nino
Devildriver
Alesana
Millencolin
I really want to see Third Eye Blind do the popular songs everyone knows (Jumper, Semi Charmed Life) but I won't miss one of the above bands to see it. Also would like to see Sum 41, Slayer, Terror and Alesana but would only fit them in if there's no one else playing. I wish Adema were playing, between them, Sevendust and Ill Nino that would complete the trio of bands I was obsessed with around the time the nu-metal trend was going on.