City folk vs country folk? Wagering a guess, chilled butter won't squash during handling so manufacturers, transporters, and retailers keep it cold? I think it's odd to keep open sticks of butter in the fridge. Spreading cold butter is a pain. Ghee is seen in stores outside of refrigerated sections.
Butter starts to go off after a few weeks at room temp, which is plenty for a single stick in the butter dish at home but mildly inconvenient for shippers and retailers, or people who like to buy staple ingredients in bulk. It lasts for many months refrigerated, though.
