[phyalow]

In my case, someone who needed extra screen real estate when travelling with my MacBook Pro M1 16”. I set the iPad up on a stand, open sidecar and voila! I have (almost) doubled my screen/work area.

[ulfw]

Or you could have bought one of a myriad of cheap portable 15" HD or 4K screens for that for 1/4th the cost of an iPad Pro 12.9"

[anakaine]

But then lost the option of having a tablet you can take around when you don't need a laptop. Also, if you're developing for ipadOS you've lost access to that. And any apps you may have had in your Apple ecosystem if you were replacing an old tablet.

Not everything is purely price driven.