This article describes the trend currently going on where because upper-end homeowners are proud of their homes and want to memorializing the home are hiring Architectural photographers to do create stunning, large wall photographs of their homes and custom printed coffee table books.
This article focuses on the rich and famous but I think this market extends down to may upper-end home owners. I've encountered many upper-end home buyers and sellers that just love to have photographs of their home.
As John and I discussed, another great product for these people would be a DVD based slide show of their home that would play continuously on their 60" plasma display in the living room. Of course all of these products are just a substitute for what these folks really want; an article about their home in Architectural Digest.