For sure, but it varies. My experience is from the iPhone camp, so I'll speak to that. Some iPhones certainly became obsolete after two years. But some of th

For sure, but it varies. My experience is from the iPhone camp, so I'll speak to that. Some iPhones certainly became obsolete after two years. But some of them were troopers. The 3GS, for example, had a very long life, as did the 4. My 5 is starting to get wonky, but it's good enough that I haven't upgraded yet. My boss has been using the same Android phone for a few years now, so I know a similar pattern exists in the Android market. The point is that you can choose when to upgrade, rather than being more or less forced to upgrade every two years. This is especially helpful to those with tight budgets, which I think composes the majority of people.