As someone in the market for ASICs (I have several KnC orders), this sort of thing catches my interest. But as I see it, I can spend 120 BTC here for 110GH, or wait a few months (supposedly..) and get 400GH for 70 BTC. Even with difficulty spiking, the latter looks like a better deal, so I put my money there. I can't speak for others, but I would imagine the thinking is similar.
If you look at what 110GH can mine in a few months - you could buy more KNCs in that time if you truly believe in them. There is a significant difference between in hand and preorder without prototype or ANY delivered units though. I wouldn't (and haven't) put all my eggs in one basket. I stick to things which exist immediately
