Thats kind of my point. Its been almost 4 years and apple hasn't made the devices (at the same price bracket) any more performant. Will the software they make

Thats kind of my point. Its been almost 4 years and apple hasn't made the devices (at the same price bracket) any more performant. Will the software they make over the next 4 years stay at the same level of requirements and run just as smoothly as everything seems to run on my air after 3 years? I am not sure that is the case looking at how the OS is moving and how they are treating performance.