I actually think that the Wallingford site is better than Brook's actual site. They seem to do a very good job describing the models. The content in Rivendell BIke's catalogue regarding measuring for your correct saddle purchase would also be a nice feature.
Maybe a Q&A or FAQ section that covers all things saddle, from stopping annoying clamp squeaks to how to handle an accidentally soaked in the rain saddle. Even a forum (simialr to C&V?) might be nice where people who actually own them already can help those contemplating buying one. $200 beans is a lot for a saddle, and I think more folks would buy them if they had a better idea of what to expect.
All in all I find the official Brooks site fairly low on content but big on style. When I think back to when I was trying to select which Brooks to try having a fit guide and instructions for figuring out which model is best for your body type would have been the most important thing.
Having said all that, the product itself is great. I have 2 swifts and a Team Pro, and love all 3.