Totally cool! But Japan is known for its awesome vending machines: you could buy bananas or fish-soup from a vending machine, so why not Keikyu trains!! This person bought the new Yellow Happy Train, nice! I would buy the new Keikyu Do-Re-Mi-Fa train with sound too! All Keikyu trains are "limited editions", so it's really nice to have this possibility to buy them! 
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