Audio Shows and Equipment BreakIn

Could someone please explain something to me??? I've been reading the forum trying to get some info on the Avalon Eidolon speakers. The threads beg comparisons to other speakers. Something that I read over and over again that blows my mind is the manufacturer's apparent habit of demonstrating equipment at a show that is not properly broken in. I do understand that the environment at the shows can't be controlled but I have a really hard time understanding why a manufacturer would not want to make absolutely sure that his/her speakers were completely broken in, such that they could be shown at best advantage. Any idea as to why this occurs so often???