Costco Sale: DeMarini Vendetta -12 Youth Baseball Bat $79.99 by Rhonda August 29, 2020 Costco has the DeMarini Vendetta -12 Youth Baseball Bat on sale for $79.99 (after manufacturer’s instant rebate), now through April 1, 2013. That is $20 off Costco’s regular price of $99.99. … 0 FacebookTwitterPinterestEmail