Well since this thread has been brought back to life...I shall put in my two-cents.
The pole CA sells is not a new idea, I rode for a cutting horse trainer years ago that had these. We tied all of our horses out there on them. I would saddle horses...get cattle in...trainer shows up...I started loping horses, hand them off to him to work, back to me to cool out..put back on the pole. In between lopin horses I would take horses off the poles and washed, dried and put back in pens. None of those horses ever thought about going to a gate or back to a stall. They knew that just because we were done working it was over. Horses don't think that being saddled and tied is punishment, they only do if the have been spoiled by put back straight away. (I will say some horse are more prone to this than others,in my opinion). They are happy to stand tied without having to do anything...horses are lazy by nature.
I also saddle all my horses, tie them in the arena, work one, tie him back to fence, work another, tie him back to fence..and so on. This also teaches that the arena is not a place of constant work. Their cinches get loosened and they get to relax and not work. My horses walk calmly into an arena and don't leak towards the gate. Same concept.
I would rather practice to prevent a problem rather than try to fix one later...
I DON'T LEAD 'EM AND FEED 'EM, I RIDE 'EM AND SLIDE 'EM.