boa and ayu stuffs at yesasia XD
 

items that are just release there like couples days are already out of print, makes me wonder is it those peeps buying choke quantity and selling it on ebay for money LOL ppl these days, lucky i didnt want those item if i did i 'll be pissed i didnt even know the boa poster came out until it was out of print in 3 days!!!

You mean like BoA's BEST OF SOUL that comes with the poster? They are limited, and a lot of people preorder them, so they go fast.

That's the main reason why they sell like hotcakes - Pre-ordering.
Some fans even pre-order them even if it were like, six months away.

it is so risky to preorder 6 months away. if the item gets cancelled, then you are stuck and have to order something else

Um... the six months thing was only an example. I'm not exactly saying that some order it that early.
Anyway, if for example, you do order it online and it gets cancelled, the site you bought the item from is obliged to inform their customers so I doubt they won't inform you in some way electronically or not.