No, I wouldn't expect fireworks or anything like that... that's not what makes for a good live act. A good live act gives me something more than I could get by just listening to a CD - Nickel Creek and Rodney Crowell come to mind as acts that bring that something extra.
Again, I enjoyed the show, and I think Jack's a great musician and songwriter. I think the venue/crowd took something away from the show last night. If he played a small venue where camera-phones and college kids were banned, I'd go again in a heartbeat.