I think 5 or 6 pieces on display is good, something in stock would be better, I mean is everybody buying blind ??
The dealer I am talking about didn't have anything on demo and the amp I was interested was only 1500 retail...thats NOT what i call "carrying the line".
As we all know you cant really tell about something until you get it home....so a good dealer should at least be able to loan you something to try, but they got to have it on display to do that.