Also, the phone industry, especially the biggies are into planned obsolescence of their products in pursuit of more and more profits. I personally do not prefer replacing my phone every few years, and going through the hassle of backing up the files and setting up the new phone etc. I want a device that just works and isn't a botheration to maintain and upkeep for long.
The lifespan of products were much longer not too long ago, before the corporate interests figured out planned obsolescence. I remember as a kid, the products we purchased at our home, lasted much through my adolescence and into my adult life. For example, the radio which we bought worked for years without wasting much time of fixing it up every now and then, just a couple of batteries would last a really long time. All it needed was large batteries. I would prefer products that have a longer lifespan than being at the cutting edge, and wasting precious time chasing the latest and greatest. I have better interests to attend to :)