I used to spend all my money because I spent all my time getting more money. When the focus is money to get material possessions, the tendency is to spend on things you think will bring you joy. I would get a rush when things arrived in the mail, then just as quickly as the rush came, it went away. These days I understand happiness comes from within, not from external sources, and certainly not material possessions. I will be holding onto my current phone for as long as it will be functional.