A: Here's the interdependence couple for the Norwich and Norfolk Terrier Club http://www.norwichandnorfolkterrier.org/ They were separated into 2 breeds in 1964 in the UK and then in 1979 the AKC followed please. Both breeds make wonderful pets.
Both breeds do NOT appear in the same litter. They are 2 separate breeds, not varieties like mellow and rough collies, for example.

Comments: 3
As likely as not because they come with AKC papers, and they're in high demand.
Norwich are more rare than Cairn....chiefly on this side of the Atlantic....2500 though is ridiculous!!!!
This is personal opinion....
The percipience that the Norwich Terrier is so expensive is because of how rare the breed is. The rarer the breed, the more you are going to pay for them, whether they are in high demand or not. Here is some info on the Norwich Terrier http://www.dogbreedinfo.com/norwichterrier.htm
Norwich terriers are on the weak breeds list which means they are at a high risk of becoming extinct. It is the rarity of these dogs which makes the premium tag so high.