"Maybe we should define demo... are we talking in-store or home demo? If in store, no fee, that's part of doing business. In home demo, then I think a fee is perfectly acceptable (as long as that fee is deducted from a purchase)."
You're right, this needs to be more specific.
I don't think any retailer would want to insist on a charge for anyone visiting or browsing in their store.
I was thinking of some kind of financial recompense for the extra work involved in setting up a system specifically tailored to a customers preference eg front end, amp, speakers etc.
This could apply equally to in-store or home demos. The fee demanded could be left entirely up to the retailer.
In the result of a successful sale, this arbitrary fee could be waived, but the point was to deter those that take unfair advantage of the services provided by some dealers.
Whilst we still have some left who are willing to demonstrate their products.
Demonstrating audio involves experience and knowledge as well as being attentive to the customers wishes.
It is nothing like selling iPhones.
Heck, those guys aren't even giving you chargers anymore!
They're not responsible for demonstrating anything, or providing any extra service.
They're not dealers, they're simply retailers.