Washer: three load, top load stainless tub, industrial model. doing fine so far, no computer. Amana dryer, no computer. Have replaced the timer, the wheels the drum rolls on, all the thermal switches in back (there are four) at least once (about $20 for the set). still going strong. Water heater: replaced the thermocouple/burner assembly once. Still going strong. Furnace is from the '60s. Huge footprint (natural gas, forced air) but I replaced the drive belt on the blower and oiled the bearings on the motor and cage, and keep up with the filters. Works fine, no computers.Thermostat is an old bimetallic mercury switch. works fine. Fireplace backup.
A/C accomplished with three window units and a small box fan, keeps the house livable when we hit triple digits here (yeah, that happens). A unit goes out, it is replaced, under $500, no service call.
Fridge and freezer are new units, no automatic icemaker/water cooler, so no plumbing. one less set of timers. Still chugging along.
I had a set (Whirlpool Duet) of the newfangled front loaders, and they were, imho, junk. We went back to basics and never looked back.
So far, so good. None of it can be hacked, none of it is interwebbed. Just the way I like it.