I'm still content with my 6S. Plus, seeing as there's no headphone jack on the 7, I'm hoping Apple will pull a Moto Z and put it back in a future model. I'm not shelling out for bluetooth headphones or getting a bunch of adapters (planned obselence quality = lots of $$ down the drain over the life of the phone!) when I have a pair of perfectly good Grados.
I don't even use the headphones, I don't need an ugly jack being there