Each dealer has his own pricing - some won't give more than 15& while others may go to 25% or more. You just have to bargain hard and be willing to go to a different dealer if you don't get the price you want. I suggest contacting several once you know the floor plan and options you want.
Tiffins in general are in demand, and the new Breeze even more so. I know of dealers who cannot get them fast enough to meet demand, so they have little incentive to discount deeply.
Former owner of 2004 American Tradition and several other RVs
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC