Zotac is also a good brand for a Nvidia GPU not to mention it is also cheaper, the only difference from other brand is cooling solution, factory overclock and the warranty of the GPU. If you are not picky on the brand I would suggest for you to grab that GPU not to mention the RMA of Zotac is one of the best. You might also want to check Galax and Palit.
Well, the problem is when trying to buy the Zotac cards they're never in stock or they're marked up now through the roof. I'm at a fork in the road currently where I cannot decide if it's best for me to buy another three 1060's (asus) or buy two 1070's judging the math/roi of it I believe the ROI on the 1070's may be faster but Math has never been my strong suit.