Buy it? 
Seriously, if you are talking about the sets where you get two shinkansen trains with the retractable connectors so that you can link two together I have purchased both the standard PlaRail ones and PlaRail Advance from Japanese sellers through Amazon without any issues.
Alternatively you can find Japanese sellers offering these on EBay (or at least you can in the UK)...
Cheers, Nigel
Seriously, if you are talking about the sets where you get two shinkansen trains with the retractable connectors so that you can link two together I have purchased both the standard PlaRail ones and PlaRail Advance from Japanese sellers through Amazon without any issues.
Alternatively you can find Japanese sellers offering these on EBay (or at least you can in the UK)...
Cheers, Nigel
Happily collecting things all my life...
(This post was last modified: 10-11-2015, 12:12 AM by Nigels.)