As it's been brought up in this thread here is my take on most model rail releases. As the models themselves including coaches and wagons are so expensive the manufacturers only make them in batches. This is also due to how the factories work in China. Thus I treat every release as a limited edition. If I want it I pre-order it. This is especially true with something you know is going to be popular, particularly for me Dapol 68 and Dapol Freightliner HIA wagons, (I pre-ordered these items). For the future Bachmann 37099 and 37884 are going to be extremely poplular, (I have pre-ordered these). Also got my 68's for my pre order price!
Anyway back on topic, my 68's have gone in the post to be replaced with good examples.