In fact, they probably think artisans knows best. Artisans, who often tell me they display the way they do because retailers do it that way, don't know that most galleries', shops', and stores' displays leave something to be desired. Another reason I often hear for not displaying the wares in a manner that make it easier for buyers is they want to force customers to ask for information. Rather, it is good display that causes customers to want to purchase, not to ask questions. The percentage may even be higher than I have stated.
Retailers face the same problem.
Many who come into their place of business are unfamiliar with the store or the items they sell. Because people may be unfamiliar with an artisan's work, the way it is displayed will help or hinder customers entering the store. Three things primarily. One, they don't want to be embarrassed for asking a question they will be looked down on for asking. Two, they believe they might be looking at prices they can't afford.