So KNC would be better?
IMO best available option at the moment and getting one before the difficulty hits 1000 Million, shows a reasonable chance of ROI in ~3 months. After that, if any of these vaporware products are actually shipping the difficulty will go insane, but by then you've got a paid off miner making "only" a couple of hundred bucks a month instead of one that owes you a bunch still. The bonus also with buying KNC now is that if the vaporware products are delayed MONTHS you stand to make bank.
Yes, that link https://www.kncminer.com/?resellerid=233 does give me a small commission, and you've only got my word for it, but I would not be pimping it out there if I thought it was gonna end up losing good people good money. In a couple of months you could see me with a cointerra or hashfast or other link in my sig and that will not mean that KNC hasn't been the best buy NOW, it will mean that one of those other guys have come through finally and represent the best deal then. If you want to wait, wait past March for the vaporware to solidify and the price cuts and difficulty shakeout, if you want to buy before March, getting a KNC Jupiter right now looks to be the best option.
Flash