Should I upgrade to the iPhone 6s Plus?

I currently have a iPhone 6 64gb Space Gray. I regret now not buying the bigger screen. I'm wanting the iPhone 6s Plus Gold 64gb, and it's looking very tempting. Price doesn't matter for much, id buy it straight out with my credit card, sell my 6, pay that amount off, then pay 100 off every month.

So i'd be getting a better resolution, bigger screen, faster chip, force touch, 12mp camera, 5mp front facing camera, image stabilization, and 4k video support on camera.

Knjjkiii