Agio Eldorado Sling Dining Set – Costco Sale! by Rhonda February 4, 2021 5/14/20.This large dining table includes a porcelain-tile tabletop with elegant cast inset. Select Costco locations have the Agio Eldorado 7-piece Sling Dining Set on sale for $999.99 (after instant savings), … 0 FacebookTwitterPinterestEmail