I am in a similar situationHey yeah we are in the same boat. Honestly in your situation, if the difference is really only $400 and there aren't options for buying like new or used, then your best bet is probably with the 2016. For me, I'm now looking through eBay for a 2015.
I currently have a macbook pro 13' but its on its last legs and i need to upgrade. My birthday is in december so it will be a nice little present.
I was thinking of getting the 2015' 15' macbook pro...but that is a very old machine as its been out for ages etc....the touchbar 15' is future proof but the price is enormous! You also have to take into account I live in the UK and prices are through the roof!