If you like the 2016 more than the 2015, I say go for the 2016. If you like the 2015 more, I highly recommend the dGPU refurbs...the mid-level 2015 with the 2.5/512/dGPU for $2,100 is a great price for a great computer. The full package performance of the 2016 can't be overlooked either, especially for those working with higher res videos.
I'm always personally a little hesitant of premiere models having had some inconsistent experiences with multiple brands. But I'm ready to buy a 2016-13, as a huge portion of the initial quirks appear to be more software related than hardware related (where as the premiere 2012 retinas had some notable hardware-based issues, such as image retention and screen flickering.)
At the same time, the frequency of these cosmetic flaws that are blatant and should have absolutely been spotted by any of the (likely many) people doing final inspection can ruin the experience of a great design, and would be nearly comical if they weren't so frustrating. A scratch like that is like delivering a brand new Ferrari with key marks on the door handle. If I was charged with handling the final inspection, even if I was drunk, high, missing an eye, nursing several bullet wounds, and dealing with a bad case of botulism, I think I could still probably spot that and say, "yo, this isn't gonna fly." So I don't give Apple a pass here, and feel this is an area they can improve.
Bear in mind that forums may have more stories of issues than they will of successes, and the higher pricing on the 2016 likely means higher expectations than previous models (and it should, given it's a huge chunk of change.)
It's also worth pointing out that a huge percentage of Buyers who wound up getting a 2016 that had an individual defect ultimately chose to try again with another (and in some cases, another-another) 2016. Considering how frustrating that can be, if they didn't really like the design, I doubt they would try again (they'd just go for a different year or leave Apple altogether.)
