In the industry a hell of a lot of people think it was a marketing trick, not a mistake. I'm leaning that way too, based on my knowledge of people within Razer (though I should point out that while I know plenty of people there, I don't have any specific knowledge about this situation, just speculation).

To pull this off purposefully wouldn't even have to be too expensive, we have no way of knowing whether they are honouring thousands of orders or a couple of hundred. And regarding margins, a hell of a lot of the costs associated with a typical product sale come from distribution (the distributor takes a cut, the retailer/etailer takes a cut, plus MDF marketing costs), so this deal being through the Razer site will certainly help keep the losses down.

Also side note to jamornh: the Blade isn't available in the UK yet, so bad example - but your point still stands, 90% is definitely a loss.