Finally, I decided to bring my hermes box with me and I put my older birkin into the box and placed it in another box to protect it. On the other hand, I hand carry my new birkin as my handbag. At the australia custom, firstly when I processed the tax refund they asked me million questions about " why this bag worth so much". then.. next challenge... for the X-ray machine. I put my birkin onto one of those plastic tray and I assume it would be fine. Then the smart lady custom officer just took off the tray (cos she think my bag dont need a tray) and throw it into the Xray! I feel " SHxxT" and when it came out.. at the other end, as usual.. it crashed to other ppl's luggage.. but surprisingly that's no scratch on my bag's hardware.. what a LUCKY day!! when I arrived NZ. another challenge for my new baby. the custom searched my luggage.. and they found I have 3 handbags ( YSL, 2 birkin) they asked me millions question regarding the price.. and when they try to take out the Hermes box, they BROKE it !! YES!! they did!! althrough, it just a small damage but I feel so mad and upset.. and they dont even apologies. they said.. it is an accident! that is!! and they even said something like " nobody ask you to buy such an expensive bag like that and I dont see anything special from your bag! " because I mentioned when they pull the box like that, it just like throwing a Rolex watch on the floor. Overall it is a Horrible experience! I am so upset. because in NZ we dont have Hermes store.. so I guess I wont be able to get another replacement box.