星海爭霸II蟲族之心預購(Amazon)

剛剛無聊在逛Amazon，突然發現星海爭霸II蟲族之心已經有預購了耶～
預購連結
金額US39.99，不過試著放入購物車中，顯示如下訊息：
Not Yet Shipped:
Delivery estimate: We need a little more time to provide you with a good estimate. We'll notify you via e-mail as soon as we have an estimated delivery date. You can cancel at any time.

也就是還沒有確定上市時間～～