My kitchen was remodeled (by the previous owners) in 1993. All of the appliances, except for the dishwasher, have not been replaced by us in 16 years of ownership and I believe they all date back to the 1993 remodel (based on serial numbers and general condition when we bought the place).
In that time, I've replaced the dishwasher in 2014, a spring on the door of the dishwasher in 2022, and a heating element in the defrost circuit of the 1993 fridge. That's an oven, a cooktop, a fridge, a trash compactor, and a garbage disposal that all have 30 years of service, with only the dishwasher having failed and two repairs. Their older fridge in the basement is still chugging along as well. That's 5/7 perfect, 1/7 with one minor repair, and 1/7 failed inside of 30 years. My parents built their place in 1999; of the kitchen appliances, only the microwave has been repaired. Their place before that, built in 1974, only the dishwasher replaced between 1974 and 1998 when they moved.
My conclusion is that dishwashers sucked and still suck, but that old appliances generally chug along for decades.
