I think they made an attempt to make this years catalogue a bit more interesting by dividing it into various related bits such as GWR, LNER etc. They are I suppose making an effort after years of boring catalogues. True they have been innovative in some areas such as factory weathering and DCC but they are also sadly lagging behind in a lot of others. They are only doing what hornby have done in a fachion for years by saying what stock goes with what.