Worth mentioning, I don't know if they frown on it here but when I lived in Kentucky I know some of the local gun shops would show up to these and scout out for anything interesting or salable - paying cash of course, as opposed to gift cards.
June 17th, 10-2 at 1738 St. Roch Avenue
http://imgur.com/3cvvwRB
June 17th, 10-2 at 1738 St. Roch Avenue
http://imgur.com/3cvvwRB