Add me to the “upgrade tires and touch points” crowd. Most OEM-spec tires are subpar at best and I absolutely can’t stand grips and saddles that aren’t right for me (I didn’t even do a single ride on my Jeffsy with the grips it came with; they weren’t bad, they just weren’t for me).
I (stupidly) put-off getting new tires for my fat bike as I really didn’t want to spend the money they cost. I finally got new tires when I stumbled across an amazing deal last spring. They have totally transformed my bike!