I nearly bought some, but I decided it would not be worth it due to the fact that the company is shipping out so many of them. to me, they are trying to unload the last of what they have to prepare for the next generation gear. those do not have 5 months mining left in them (by my judgement alone) because I believe KnC will ship the neptune well before then, and others will also be flooding the market with 1T+ units well before those 5 months are up. you may see $ ROI but I think you would be lucky to see 50%-75% roi in bitcoin if you bought today, maybe you will see profit in bitcoin though, hard to say for sure.

the majority believe its worth it however, and its the best deal Ive found on the market so if your itching to buy one, you may as well =)