Way back in the dark ages when I first started going to rock concerts, there were a couple of different ticketing agencies that were used. The ticketing industry was just getting started and there was no widely used internet – the only computers were owned by the government or universities.
No, you could not order tickets online, but you could go camp out in front of your local record store (which was probably your local ticket outlet) and wait all night to be among the first in line for the privilege to purchase a ticket to see your favorite bands. Back then the fees that ticket agencies charged were a lot more reasonable than the ridiculous fees they hit us with these days. And there was only one extra charge – not all the different extra fees like “convenience fee” or any of that.