Tenshodo will be doing another run of their plastic ef57 passsenger locomotive due "sometime" this autumn.
pre-production sample (retail price TBD):
http://www.tenshodo.co.jp/models/product/release/ef57_p/tabid/849/Default.aspx
previous run:
http://www.tenshodo.co.jp/models/museum/el/ef56_812_tohoku/tabid/598/Default.aspx
*35000 yen in 2008, which is reasonable.
I really wish Tenshodo (or Tramway) would do an EF15 freight type, much more versatile loco for smaller layouts, but I suppose not glamourous enough for the deep-pocketed collectors. Must be the same reason Kato never re-releases their D51.