The marketing sections of these companies are doing everything possible to make us buy these phones even when we don't need them.
Well smart phone is now a trending thing in the modern world. Some people tend to rank them self amongst their peers using the lastest smart phones they bought and since it's very expensive, they gain more like a respect from others. I just wanted to say that you should only speak for your self though. Theses companies produces these phones due many consumers requests and taste. If you take a look at the first iphone, it's size and function back then very was small and not having more features compared to the lastest phones we can see today. If there wasn't a chase for an upgrade then maybe those phones will still be in play.
The truth is as the world is growing, new technology will be designed and old ones will be forgotten. The mass wants something new so these companies will have no choice but to give them their best.
Smartphone is one of our most important devices. It helps us in various ways. Again, many try to express their status with it. Apple is a popular brand and they regularly launch very expensive phones. to which most of the users themselves use apple brand smartphones to show off. But I don't support using apple to spend extra money just to show off. Because money management and reducing wastage of money is very important to keep yourself financially strong. But one can buy a flagship phone by spending a lot of money if it needs to use a lot of heavy software.