After using an iPhone 6 since release I sold it and had my employer buy me an iPhone 5S.
Point is, although small I feel there is still a market for smaller devices regardless of their price (I could have had my employer buy me any iPhone I wanted, no cost to me).
I was nervous at first but after using it for a week I'm very happy with my decision. I just care about overall size, and if the 6 had less bezels or I didnt need to use a case (my lifestyle is too active and I hate handling my phone like its radioactive) then I would have preferred it because technically its better in every way.