These courses were very much in vogue quite a few years ago. At that time they were all run by Americans. I went on one through my company. They consisted of 'trust' exercises, (the one where you let yourself fall and trust the person behind to catch you). It was generally all about letting yourself (the ego) go. This was in order to free the mind so that one becomes more focussed and goal orientated. It involved one to one sessions with others in the group, where each told something about him/herself to the other person. There was more.... Some of it was good and new at the time. Would I have paid for it myself? No!
In truth the £80 is probably just as good as the £250 course. you might find that the former is a group session, while the latter is one on one. Clubman is right, even if you don't want to read a tome about cognitive therapy there are books out there like 'Feel the Fear and Do it Anyway', Cutting the Ties That Bind' etc. etc.
Most of these courses/books are very simplistic and really only tell you what you already know.