Typically, when a manfacturer overhauls the line the "old stuff" instantly finds it's way to the used market. Thsi happens for two reasons:
1. Diehards have to have the latest, most current model.
2. Nondiehards are ready to move on to something else.
This happens with all brands of equipment. If you happen to own Plinius, it does not invalidate your buying decision if you are happy with the sound, keep it. If you are considering buying it it may be a good chance to get a "good deal" on a previous generation piece of equipment. Regards, Doug