+1. No one knows s**t. I've heard conflicting reports. I also know what it's like to wait for an Apple upgrade as I was waiting for a MBA update for 2 years, which never came. I can understand @i'mnewhere 's dilemma. It IS a pretty nice new toy, but if you're playing the value/money game, you will lose on this one. This is a first gen that is priced accordingly. If value/money is at the top of your list AND you want the '16 version, I would wait until refurbs or used start coming out into the market. You won't pay the upcharge and it will be hundreds less.There is no guarantee Apple will even release an upgrade in 2017.. I read somewhere, and from a reputable source that we not not see another upgrade until 2018 due to compatible CPU release schedules..
That being said, I plan on keeping mine at least 3 or 4 years, and over the course of that time, the incremental money doesn't really matter. Saving $100 here or there is less relevant over time, especially if you ENJOY or are PRODUCTIVE with it for 3 or 4 years. But if money is the top thing, don't do it. Go refurb in a 6 months or a year. No matter what you buy (new), if you flip in a year, you get the hardest financial loss.
I only mentioned the '16 as you are apparently set on getting the best value for the '16 model and not earlier versions. Good call IMHO.