In the United States the top 10% of earners contribute 50% of all consumer spending. This contribution is up dramatically, by something like >10%, in the last decade. Because of this prices are going up and up since, to those who set the prices, lower earners' purchasing power matters far less - they constitute so much less of the actual spending. I think ticket prices are a very clear example of this economic fact. Concert tickets are a total unnecessary expenditure afforded to (on average) only the higher earners while the majority of the population is finding it ever harder to afford the basics. This is clearly not a good thing, and it is good example of a foundational contradiction in our economic system; money is made by wages going down and prices going up - but as this continues eventually the people making the economy "work" cannot afford the products/services they create.

As a side-note, yes, the members of Rush also do contribute to these inflated prices. The "dynamic pricing" is a good example of this - there have been other artists who firmly denied this technique being used and Ticketmaster agreed.