Keeping the same phone for two years

Long term support should be as important as the hardware when it comes to our next phone purchase. I've been thinking about this for a while. Apple, Samsung, and Google are pricing their premium phones high enough to make a dent in most everyone's bank account. There's a lot of room to talk about phones, no matter how smart, being worth the asking prices, but talk probably won't change anything there. The prices are what they are, and we all expect to spend upwards of $900 on a new phone from an...