I never was a BIG fan, but hearing him live completely changed my attitude towards him. Plus the gorge was amazing.
You're out in eastern washington (the middle of nowhere), so it's all mountains. The Columbia River runs through there. So you're sitting at this Gorge Ampitheatre, up really high, the stage is facing west, and you're just sitting on this grassy hill. Behind the gorge you see the mountains, with the Columbia River way way down there. The opening band plays, then, when Dave comes out, the sun is just setting over the mountains. It looks unreal. Plus, they do this whole light show that's coordinated with the music as it gets darker.
A lot of friends just went up for the parties who weren't Dave fans, and they made it up to the concert and now love his music. Also if you play any instruments, you respect their musical talent. Everyone in the band is amazing.
Cgraz