I mostly only get new ones when there are serious issues with the old one, so generally they just get recycled. My first, a 3GS, did last many years with a whit

I mostly only get new ones when there are serious issues with the old one, so generally they just get recycled. My first, a 3GS, did last many years with a white noise app as a overqualified noise machine in the kids' room but even it is finally dead. One of my wife's was still in good condition at one point and we did resell it.