That is true, however we are using our phones for banking, payments, keys, personal information etc. If you can afford to upgrade every few years then that's OK. But would you use a phone with no security updates? If not then what happens to these very expensive phones after five years? I think that we may be reaching a tipping point where the incremental advances year on year for new models are reaching a point where it might not be worthwhile upgrading. If a subscription model was introduced then even the second hand market would increase plus Samsung would still be making money from the subscription.