I have seen the Dunn cabs on the shelf in Chicago. The Napa cab is not that hard to find. The Howell Mtn. can be found, but is quite scarce. Try contacting Jim Hightower, Bob Presley, or Todd Hess at Sam's. You should also check with Howard Silverman at Howard's Wine Cellar on Belmont. It would also be worth you while to see Andre Peters at Binny's on Clark Street, or Kevin Biegler at Binny's on Grand. I have, within the past few months, seen actual bottles on the shelf at Sandburg Wine Cellar (contact Alan Blum), and Randolph Wine Cellar (check w/ Perry or Brenda).
Fer Christ's sake folks, it's just grape juice!