I just noticed something odd. I have a newer (8 months old or so) Whirlpool side by side fridge with stainless steel faced doors and black sides. My friend also has a Whirlpool fridge that by all appearances is completely identical to mine and is about a year old. Black sides, stainless faced doors, etc. Literally everything looks identical. The only difference is that mine holds magnets on the stainless steel and his doesn't. It isn't even that magnets just stick better on mine...they work fine on my fridge and fall right off of his. What would cause this difference in the fridges?