you could always mod the pin to make the hinge crack-proof. call it "preventive maintenance."
i know people are going to say "why do i have to do this and that for something that i paid a lot of money for?!?!"... but that's life, sh!t happens... you can either mope about it or get over it and/or do something about it. nothing in this world is "perfect" least of all these toys that we are all so obsessed about (including me)... i have also had my share of defective/paint chipped or scratched/missing parts/broken-needs-super-gluing etc. items, may it be from Yamato, Bandai, Takara, Konami etc. 2ยข