What research can you find exploring the popularity of the "Blue Garland" and "Moss Rose" patterns of china dinnerware produced by "Traditions Fine Porcelain China" or the "Johann Haviland" company?

Can you describe changes in consumer buying habits regarding china dinnerware in the U.S. over the last fifteen years, particularly as it compares to the growth in "casual luxury" dinnerware at such stores as Crate & Barrel?