I think we understand "risk" differently.
Agreed - there is no "risk" that I am going to get scammed here and no be protected by one of my credit card, Paypal, etc. I am not worried about a scam here at all.
That said, there is a pretty large "risk" that the product will not be the product that you imagine.
@ProfFrink was making the point that if you wait for reviews, demos, etc, you can mitigate that "risk". I am willing to get in on the pre-order as there are enough indicators of likely success that I would rather get one and be disappointed, than not get one and suddenly be in a weird position of not being able to get one. That's all.
Oh - and - I don't know we are wasting our time debating about whether they should do a pre-order. They've clearly got a sales strategy in mind. And from all indications, it will be finished units in January.