The only way I would ever consider using a smaller phone now is if I ever got a job that was more physical and required me to be on my feet.
One of the primary reasons I really enjoy the mini.
Daily, I am required to channel my Inner Octopus; and it pleases me to not have to conceal-carry a large device.
If AAPL would just, finally, get-around to fleshing-out the Dick Tracy wrist-phone thing . . . well, that seems to be another story, for another day
Currently, I keep my mini strapped to my back, and BT important convos to my PowerBeats.
My AW is my Triage Nurse.
IIAC, I usually muster <1h of actual hands-on screen time during my Day.
In-kind (but under juxtapositionally different circumstances) I don't physically hold my mini much during my day.
It just rests at the small of my back.
I rarely even know it's there.