I don't like paintings, but I love pictures! (Overheard recently at the Mayfaire Art Festival in Lakeland)
Outdoor art shows are a great place to hear unedited on-the-fly comments about art. People feel no compunction to reel in their feelings like they would in a museum or gallery. Perhaps they are more at ease in the great American outdoors, nibbling on a giant pretzel, sipping a cold Miller Lite, and perusing art.
Of course, the sun and suds take their toll, and viewers, wanting to impress their friends, suddenly become art experts, and often very loud ones. Artists, for their part, must learn to put up with all kinds of public display, and the art show veterans can easily be spotted. They stand next to their displays, looking slightly bemused, wearing thick coats of Armor All.