Super wrote
I really don't understand why Tomy has to reuse numbers for trains, tracks and accessories. Aren't their enough numbers to go around?
This is one of the things that has me puzzled as well, if you want to collect a set of something it drives you crazy as you never know how many TS-16's or whatever there have been, let alone what order they were released in, or which ones are the rarer ones.
They have just started their 3rd re-iteration of the PlaRail Advance system if anyone is interested, so far AS-17 and AS-09 are being replaced, the former with a Yamote Line suburban, the latter with a suburban of some type but which I'm not familiar with, although it has a similar colour scheme to the 8000/9000 series. If you're into Advance this latter one is quite important as it's replacing the Cassiopia so if you don't have the Cassy now is the time to pick one up before they start rocketing in price!!