I have an iPhone 6, but not purchased, won it at a draw. Quite an useful tool, but I'm not leashing 600€+ for such a thing. Specially with the rapid depreciation and deterioration, however, the obselescence curve has flattened a bit recently.
In a few months I should send it to overhaul and replace the battery. When it gives up the ghost, It'll be maximum 300€ for a decent phone and the rest towards film, processing and flights.
EDIT: With Godfrey's discussion about earphones, I should buy decent HiFi cans. Long overdue, to listen at home. I actually never got the habit of listening music out of home or commuting. Just podcasts.