Guys, if you're considering on buying this from Massdrop, consider these options:
https://www.newegg.com/Product/Product.aspx?Item=9SIAB715ZF6207
https://www.newegg.com/Product/Product.aspx?Item=9SIA6BM63P7359
It's $50 more, BUT at least it will be at your doorstep by next week instead of 2018, when prices will probably have already dropped. Also, it's missing an inch, big whoop right?
I am in the same boat as you. i5 8400 or Ryzen 5? I am also an AMD fanboy, but the introduction of i5 is so tempting. I am doing my research now and will decide hopefully by today.