I have two iPad Pros: The 12.9 inch “Big Daddy” and the 9.7 inch “Baby.” Why both?
The reason is they meet two different usage scenarios. Big Daddy is the better laptop; larger screen + larger keyboard. However, Baby works better if I am holding the device while standing, sitting or reclining.
Using the courtroom as an example, in trial, I usually prefer Big Daddy because I am sitting, and the device is resting on a table. However, for an appearance, when I’m usually standing at the counsel table, I use Baby; Big Daddy just is too large and heavy to hold comfortably.
I am a gadget geek, so it doesn’t take much for me to justify purchasing a device. However, the two form factors do meet different usage needs for me. As for why I call my devices Big Daddy and Baby, you’d have to ask a psychologist.