Im sorry, but what do you expect, of course he's going to try to promote his dvds & stuff. Demos are so you see a bit of his training to get you interested, but not enough that he's teaching you how to train your horse for free, how would he ever make money that way ? Just because you don't care about his tie ring doesnt mean other people don't want to hear about it. No one is forcing you to stay or anything, if you don't like it then leave.
Sorry if that sounds like a rant, but really what do you expect. If you want to see more techniques you have to go to a clinic not a demo. I have never gone to one of his demos for that reason, I like his methods but I already know what they are, I don't need to be convinced & hear about his dvds