FYI,
according to Kyosho, units brought over from Japan are out of warranty - moreover, you won't be able to race them when the timing systems make it to the US, as Kyosho can track them by their unique ID and see where it came from originally!

Plus, that shop's prices are absurdly high - the US
retail price will be $249, which means that the street price will be far lower - and will come with warranty/support and you'll be able to race them at your local dNaNo track.