Well you can also live this hobby without ever auditioning anything but that is clearly not your objective. If you were the kind of guy who had said I just plan to audition one speaker, one TT, one CD player, it would have made sense. Clearly you are not. The reason I don't approve of such posts is that as a frequent poster providing advice, you should either do so responsibly or not do so. This "I will only demo one random horn" is a very typical post from you, unfortunately.
I see our difference - I am not speaking of demoing one horn. I do not have any affective connection with equipment type , brand or model. There is a system that includes an horn speaker I would like to listen, not just only because of the horn but for the overall system and history of the system and the owner writings I read since long.
I try not to post advice on equipment, but feel free to post my opinions on my preferences. And surely, I like to discuss the why's of others advice and opinions.
BTW, my sentence was "There is one horn system I would like to listen in Europe - and it is from a WBF member." And it was not random, so no demo, no random, sorry. Just learning, to use a word that pleases a lot of people in this forum!