DAVE AUEN and IKE AUEN DISTRIBUTING COMPANY, INC., DUNCAN CAMERON and BILL WALLACE and VANGUARD DISTRIBUTING CORPORATION, MARK DOLL and DOLL DISTRIBUTING COMPANY, SCOTT DOLL and WESTERN IOWA WINE, JOANIE HEIMSOTH and DICK POSTELS and GRINNELL BEVERAGE COMPANY, RON KIRCHHOFF and KIRCHHOFF DISTRIBUTING COMPANY, INC., CHARLEY WHITTENBURG DISTRIBUTING, INC., WHOLESALE BEER DISTRIBUTORS ASSOCIATION, and SHEILA DOUGLAS, EXECUTIVE DIRECTOR, IOWA WHOLESALE BEER DISTRIBUTORS, Appellants, vs. ALCOHOLIC BEVERAGES DIVISION OF THE IOWA DEPARTMENT OF COMMERCE, Appellee.