Agreed as far as change is concerned but the problem with upgrading less frequently is your device becomes less valuable on the market as the years go by. If you hold onto your phones for a really long time or hand them off to family/friends then it can actually be more costs effective to sell/trade-in your device yearly. This is not to say you'll make money or somehow spend less but if you can sell a phone for $800 vs a yr later where it may be worth $500-600 then you'll have to come out of pocket more on the new phone. The 2nd hand tech market is full of people looking for deals on 1yr old devices but but 2yr old devices are much harder to sell.You could have kept your 11 Pro Max for 2 more years and upgrade to the 15 Pro Max. Nowadays, it’s better to upgrade every 3/4 years rather than 1/2 years if you want to be amazed of your upgrade.