In theory, electronic componets SHOULD be more reliable than mechanical componets...the problem is that the electronic componets are not made durable enough to withstand the job they are performing.
In theory too, electronic componets should cost less to produce than mechanical componets...which has always baffled me why mechanical timer washers always cheaper than electronic-timer machines. I've taken a washer timer apart before, and those things are pretty intricate inside, and look to be rather tedious to manufacture. Electronic circuit boards however can be manufactured pretty cheap, especially with all the corner-cutting the industry does.
I worked at Unisys a while back, and they had an old Univac printer. The printer used a sincle AC 120 volt induction motor to drive the carrage back & forth (like an old manual typewriter) and advance the paper. Clutches, solenoids, and other complex mechanical componets would engange to perform the job of printing. The head was stationary, like in an old typewriter, and the paper moved back & forth. The machine was very animated, and quite fun to watch, especially with the cover off, the problem was that it required routine service, like changing the clutches and belts frequently. The machine was also expensive new, one of the older techs said the machine cost over $5000 new!!!!
Today, we can buy an Okidata computer printer for $200 and it will last for years without any service. Those printers are loaded with stepper motors that drive the printhead motor, and the carriages directly These are the only two moving parts in the printer, everything else is electronic...very boring, but rock-solid reliable!
In a washer, I see the days when stepper-motors directly driving wash drums will be upon us. Instead of agitating fast & slow, spinning, and all the other stuff being handled with gears, clutches and transmissions, the interior of the washer will be very plain....nothing with a motor, washtub, and a few circuit boards....Hopefully they will be refined and as reliable as modern computer printers, although it will be rather boring watching a modern washer with the cover removed!