Hi all, I stretched my iPhone 4's lfie to the max, and it is now dying (sometimes wifi would stop working, and other times the phone would randomly switch off even with full battery). I am a student with small budget, and I am thinking iPhone SE would be a good upgrade option. Should I go for it ($400) or some refurbished iPhone? I was surprised to find that it is still $400 even after the release of iPhone 7 - would SE's price go down only after iPhone 8 is out? Thanks!