Sometimes I think anecdotally it’s always the younger demographic that has to have latest smart phone right away, where as more of an older demographic tends to not care as much about having latest device, simply because they view it as a ‘phone’ and not a ‘fad.’
For the record about myself, I’m only 33 and I could care less about having the latest smart phone every year, even though I tend to upgrade. But I think when you have a younger crowd in there earlier 20s perhaps, it’s all about having the latest iPhone as quickly as possible sometimes.