When you realise the main difference between an Air and a Pro is active cooling on the CPU on the Pro, it makes sense why the Air is a powerhouse. Knowing the M-series is very efficient, you’ll only notice the difference on heavy loads. (I know the Pro has more options, but it only makes a difference in specific workloads)

Paying the exuberant Apple tax for more soldered RAM and storage is something you’ll never see me do as long as there are ultrabooks without permanently attached storage.