I think I'd like to see mechanical controls again. And, of course, not just any, but ones that will last long enough to see more the completion of one cycle... Mechanical controls seem more intuitive to me than endless rows of little buttons and flashing lights. (Although...well designed electronic interface might change my mind. But the interfaces used now seem primitive with all the user friendliness of an early VCR.)
At the same time, however, I have to wonder if mechanical controls have much chance of coming back... For some options, it might not matter--a switch can select Heated Dry on a dishwasher, or Hot Wash on a washer. (Even if the switch doesn't actually directly switch anything--i.e. it's "read" by a computer.) But for timers on appliances that now have a computer brain making decisions (e.g., dishwashers that "decide" how long to wash, etc) it seems likely to stay computer based.
The issue of control boards getting fried is a real issue. But why can't appliance companies engineer the boards better? Why can't they ensure replacement parts are available, and fairly priced? (OK. They have an interest in seeing people buy new... But at some point, they need to understand the planet can't support new appliances every year. Many of the 99% in the US who are getting poorer every day can't afford new appliances every year. And parts could generate some revenue, and a perhaps a lot of good will.)