Agreed. You'll only have a shot at tickets at the Tickethorse kiosks if you're the within the first two or three people in line. These shows will sell out in less than five minutes which is about the same time it'll take to process two or three orders at the kiosks.
It's too bad that the Tickethorse phone system isn't automated like Ticketmaster. I have a method for acquiring tickets through the Ticketmaster phone system that has proved successful in the past.
I'll be trying my luck online as well.