If you convert the yuan prices to USD or whatever your local currency might be they're not that crazy in price. The issue is that you need a Chinese cell phone number to register for the site. They text you a confirmation code or something, but it was hard to tell with Google Chrome's rough translations. Also, most of them only accept payment from the equivalent of a Chinese Paypal service, which again you need to be in China to use from what I could tell.
I looked into this back when the first leaks about the Trooper and the Spectre were coming from that site a month or so ago. However, this late in the game it's less than a month to August, so is everyone really that impatient?
You do realise that Nerf is a kids toy brand right?
Impatience is basically a trait of nerfers.