Less payment options, crucially Paypal.
What the chinese bank did to ban BTC in some areas ..that's got to hurt demand over there to some extent. http://www.bloomberg.com/news/2013-12-05/china-s-pboc-bans-financial-companies-from-bitcoin-transactions.html
Lack of details ..asking people to chuck 10k at a rig with so little info, especially about power consumption which may be a factor for some.
3TH seems a lot now and I think they will be more like 4 or 5 even..but it may not be so hot in the 2/3/4/5/6 months they get delivered...there's another reason, time is critical yet seemingly not so much for KNC customers to get a realistic estimate.
Reason for that being that we may hold them to it, and they'd get tired again due to their piss poor management of staff and resources which leads to weeks of insomnia. Laughable. Manufacturers use a schedule. Not dice.
Not even touched the reasons I won't, poor communications and respect for customers, lying flat out, and quit while I got lucky thanks to an unexpected spot of good fortune without which I'd be losing big time ..which was nothing to do with KNC. If BTC were 100 dollars now we'd all be in a darker place.
Loads of reasons why, despite being better than other suppliers so far, people may not jump into a long uncertain game with KNC again.