How can Audio shows be improved?

Probably,just like me, you have had a keen interest in some new audio products and wanted to hear them, and as this opportunity often has been given (to us) at a show, you have likely, just like me,more than once been disappointed by the mediocre sound you heard(because of a less than optimal set-up) or by the hectic conditions or by the annoying disturbances from nearby rooms, that distructed you and me from forming a meaningful opinion.
If you agree to what I have written, and I suppose you do,
what can be done about it; how can shows be more rewarding to to their visitors?Are there even rather simple ways to
achieve this?
Here are some of my suggestions, and please, let me hear yours!
1)Education of salesmen in e.g room acoustics, because it shouldn´t be a suprise to them , that an empty room sounds
quite different from a room full of people!Some room treatment is nessecary to all rooms, that would be used as
a listening room, that is obvious to us consumers, and it should be obvious to salesmen or representatives as well.

2)Make admission fees different for each day of the show,
so that we, by paying more, can choose better conditions,
if we are seriously interested.

3)Investigate more into what the visitors want to get out
of a show. If the goal is simular to the visitors and to the
exhibitors, things are much more likely to turn out well!
A dialogue, is the key word here.

4)Make agreements among exibitors about soundlevels, e.g.
so that it is possible to play loudly, but only at certain
periods of time.

5)Try to do programs at the times stated,do that by better planning and better preparations.

6)Never should a salesperson disparage products, that he or she doesn´t represent.Leave all evaluation to the consumer.

7)Exebitors should evaluate each show, what did we do well,and what could have been made better? Some self-critisism may be fruitfull, and may be obviously and necessarily needed in order to keep the interest alive, because too much of mediocre sound(from products that could have sounded much better), too much of uninspiring music,
too much of crowded rooms, could easely be detrimental to our hobby!