Let's face it , the older folks are not the ones that spend money on concerts these days. I wouldn't fight the crowd if tickets were $10 but there are a lot of bands on the list that appeal to the young people.
If I were a promoter I would be booking the acts that the young people like, especially at ticket prices these days because most of the over-50 crowd aren't going to pay big bucks for a concert. My take on it anyway.
I saw the line-up and there are a few I wouldn't mind seeing - Dwight Yoakum and Zac Brown.
Good luck on the sale.