$399 USD is great, but why are we still stuck with 16 GB of storage on base model phones? You can barely put a day's worth of music on your phone and you cannot always stream via services like Spotify. Spotify accounts for 2 GB of traffic per month on my phone and some plans are barely affordable when you want more than that--fortunately I can do up to 6 GB before I am traffic shaped, but that isn't the say the same…
It's only $60 [1] or less to replace the iPhone NAND Flash Memory from 16GB to 128GB at Shenzhen's Huaqiangbei[2], labor included. Obviously, it's advisable to do the upgrade after your warranty has expired. ;) [1] http://9to5mac.com/2016/02/03/iphone-flash-storage-upgrade-s... [2] https://en.wikipedia.org/wiki/Huaqiangbei
[1] https://en.wikipedia.org/wiki/Qihoo_360