Doesnt work like that , on a standard two year deal, ( 3 yr deals are now getting popular as well) you would still have 12 month's payments of maybe 75 plus dollars a month owing. You ain't getting 800 dollars trade in for a 1 year old phone, so even the the New to new cost might be lower, you have at least have had to had paid off the first handset.. but if you've dropped a chunk of cash to settle the first deal its not really the same as suggesting it makes sense to upgrade.The interesting thing about this iPhone cycle is that current X owners will be better off upgrading, assuming the price goes down as rumored. The monthly payment on the upgrade would be cheaper.
Screen size upgrade is pushing the limits of technology lol, really? Boy you are easily impressed...employees
Kids are spoiled nowadays. Including you.
Except for new colors, all things you mention are pushing the envelope on technology and could definitely be regarded as "one more thing" if they were surprises. The difference now is that Apple is a trillion dollar company and it's near impossible to keep something a secret. More employees than ever and larger supply chain than ever.