Excellent question Bill! One I am meaning to pursue further. Airstream offered the "limited" Special Edition for the anniversary year...limited to as many buyers can make their way to purchase them????? 2 years and 4 trim packages (reg Safari, SE Safari, CCD International, and Classic Limited) and 2 sizes (25' and 27') for the front bedroom model so far.
I mentioned buying the 2006 Safari and various dealerships telling us there would be no Classic model to Dickie Regal at the International when I traded the Safari for the Classic I had tried to order in the first place and he said they had no way of knowing these things and promptly took off.