Well its nice that the iPhone 6...
...has mostly managed to catch up feature wise with my 2012 spec Nexus 4.
I think the issue for Apple in the future is that they launched the iPhone back when the components for such devices were at the peak of mobile tech and could charge a premium for such tech.
However, now that tech is mature and common, the material cost of such devices has plummeted hence why we can now have a full blown Windows x64 tablet for £60!
Apple's marketing folks will have an uphill struggle to keep convincing their kit is worth £600 when in the not too distant future you can probably buy a faster 4K IPS, 128GB, 20MP enabled 5.5" Android for £275.
But I'm sure they'll perfect their mind control techniques further.