I´m not really sure why everyone is bashing the D3's so hard. 

Do the math.

Lets say you've paid $1500 for the D3.
Profitability today (according to whattomine.com) is about $13 daily if you get the 19.3Mh/s version.
Lets assume that the profitability will be reduced with 20% montly.

This gives you a ROI of about 6-7 months.

Its really not that bad.

And what if everyone is wrong and the profitability stays up and reduces with lets say 15% montly, that will give you a ROI in 5 month +a couple of days. 10% = ROI in 4.5 months.

This is of course a very simplified calculation, but it gives you an idea.


In my opinion, the D3 is not as bad as people make it sound.