Here's what I've paid recently:
The Eagles - $175.00 each .... bought 4 - OUCH!
Steely Dan - $110.00 each .... bought 2
Cher - $110.00 each .... only bought 1 for wife (wild horses couldn't drag me there

)
Let's not forget the concessions beer $8 (small), coke $5, souvenir t-shirts $30 and up, parking $10, and on and on.
No wonder CD sales are down. At these prices your lucky if you can put gas in the car to get home let alone go out and buy the artist's CD.
My first concert: The Rolling Stones in '65 or '66 - $ 6.50 each.
Bill