Ok then you got 57% back on a 17 month old phone. Definitely better than what you could get in the US.
I am not sure why the resale values are better in the UK than in the US.
Also it was on iOS 8.4 so maybe that added value as it is jailbreakable.
[doublepost=1475952237][/doublepost]I bought my iP7 outright from apple but I have ordered a 7+ 256gb through EE on a one year upgrade for £65/month, I pay nothing upfront although they originally wanted £199 and I also get 6 months free Apple Music and 24 months BB Sport app so a saving of £180 in total.