Electrical controls are cheapers

Like not controls as in the "colder" knobs, but what senses and maintains the temp. When/if that turns off, the fridge can't tell what temp it is. It could be zero or 100, shutting off ruins the food, but not turning off would permanently break the fridge.

One of the few silver linings to data centers is it may change the math and we'll start to see old school 1950s "dumb" appliances again just because the components for a smart fridge are now more expensive.

Our prices won't go down, but at least it'll be a dumb fridge that gets replaced in 40 years instead of the new ones that barely last a decade.