Been an iPhone family since the beginning.  Originally, the seamless integration between iPhones, iPads, and MacBooks was the main reason as we all seemed to have a combination of Apple devices.  For me, I jumped on the iTunes bandwagon early and have come to expect my tunes to be available regardless of the device I'm using.  Obviously, things keep changing but I haven't noticed a reason to change yet.  When anyone complains about running out of space I simply tell them to delete some of the useless thousands of photos and videos that they can't seem to part with.  

  I've been offloading my photos and videos to a separate storage solution for years to keep my devices as clean as possible.
Interesting to see the positive comments about the Windows phone.  I keep hearing people talk about how they wished Microsoft was still in the business because they really enjoyed the phone.